*SET-U

English word origin

Etymology of scuba

Etymology tree Proto-Indo-European *swé? Proto-Indo-European *selbʰ-der. Proto-Germanic *selbaz Old English self Old English self- Middle English self- English self- Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Prot

1 source sectionExtended source reportWiktionary original ↗
In this entry · 1 source sections

The source etymologies

Wiktionary via Kaikki / Wiktextract

The source reports below are imported and unreviewed by *SET-U. Separate numbered origins and differing source variants are preserved; agreement within this extraction is not independent corroboration.

Unnumbered source etymology

Original entry ↗
verb

To perform scuba diving.

noun

An apparatus carried by a diver, which includes a tank holding compressed, filtered air and a regulator which delivers the air to the diver at ambient pressure which can be used underwater.

Selected source glosses provide context, not a complete modern definition inventory

Etymology tree Proto-Indo-European *swé? Proto-Indo-European *selbʰ-der. Proto-Germanic *selbaz Old English self Old English self- Middle English self- English self- Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Proto-Indo-European *ten- Proto-Indo-European *-yéti Proto-Indo-European *tn̥eh₁yéti Proto-Italic *tenēō Latin teneō Latin contineōder. Latin continērelbor. Old French contenirbor. Middle English conteinen English contain Proto-Indo-European *-tósder. Old English -ed Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-tós Proto-Indo-European *-eh₂tos Proto-Germanic *-ōdaz Old English -od Middle English -ed English -ed English contained English self-contained Proto-Indo-European *h₁én Proto-Indo-European *-tér Proto-Indo-European *h₁entér Proto-Indo-European *h₂én Proto-Indo-European *dʰeh₁-? Proto-Indo-European *-dʰi ? Proto-Indo-European *(H)n̥dʰí Proto-Indo-European *-ér Proto-Indo-European *(H)n̥dʰér Proto-Germanic *under Proto-West Germanic *undar Old English under- Middle English under- English under- Proto-Indo-European *wed- Proto-Indo-European *-r̥ Proto-Indo-European *wódr̥ Proto-Germanic *watōr Proto-West Germanic *watar Old English wæter Middle English water English water English underwater Middle English breethder. Middle English brethen English breathe Proto-Germanic *-ungō Old English -ung Middle English -ynge English -ing English breathing Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *perh₃- Proto-Indo-European *pr̥h₃o- Proto-Italic *paro- ▲ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin parō Latin apparō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin apparātuslbor. English apparatus English SCUBA English scuba From SCUBA, acronym of self-contained underwater breathing apparatus; now usually viewed as anacronymic.

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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{ \"1\" : \"ine-pro\", \"id\" : \"intransitive verbs\", \"pos\" : \"suffix\" }, \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-yéti\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-eh₂yéti\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" }, { \"keyword_abbrev\" : \"influ.\", \"keyword_label\" : \"Influenced by\", \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-h₂ti\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"influence\" } ], \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Italic\", \"term\" : \"*-āō\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"-ō\", \"lang\" : \"la\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"parō\", \"gloss\" : \"prepare, provide\", \"lang\" : \"la\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Latin\", \"term\" : \"apparō\", \"status\" : \"ok\", \"lang\" : \"la\" }, { \"id\" : \"action noun\", \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"id\" : \"action noun\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-tus\", \"lang\" : \"ine-pro\", \"pos\" : \"suffix deriving action nouns from verb roots\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Italic\", \"term\" : \"*-tus\", \"status\" : \"inline\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"-tus\", \"lang\" : \"la\", \"pos\" : \"forming action nouns\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"apparātus\", \"lang\" : \"la\" } ], \"keyword\" : \"lbor\" } ], \"lang_name\" : \"English\", \"term\" : \"apparatus\", \"status\" : \"ok\", \"lang\" : \"en\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang_name\" : \"English\", \"term\" : \"SCUBA\", \"status\" : \"ok\", \"lang\" : \"en\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang_name\" : \"English\", \"term\" : \"scuba\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"scuba\">"
    },
    {
      "name": "acronym",
      "args": {
        "1": "en",
        "2": "self-contained underwater breathing apparatus",
        "nocap": "1"
      },
      "expansion": "acronym of self-contained underwater breathing apparatus"
    },
    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": "SCUBA",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *swé?\nProto-Indo-European *selbʰ-der.\nProto-Germanic *selbaz\nOld English self\nOld English self-\nMiddle English self-\nEnglish self-\nProto-Indo-European *ḱe?\nProto-Indo-European *ḱóm\nProto-Italic *kom\nProto-Italic *kom-\nLatin con-\nProto-Indo-European *ten-\nProto-Indo-European *-yéti\nProto-Indo-European *tn̥eh₁yéti\nProto-Italic *tenēō\nLatin teneō\nLatin contineōder.\nLatin continērelbor.\nOld French contenirbor.\nMiddle English conteinen\nEnglish contain\nProto-Indo-European *-tósder.\nOld English -ed\nProto-Indo-European *-h₂\nProto-Indo-European *-éh₂\nProto-Indo-European *-tós\nProto-Indo-European *-eh₂tos\nProto-Germanic *-ōdaz\nOld English -od\nMiddle English -ed\nEnglish -ed\nEnglish contained\nEnglish self-contained\nProto-Indo-European *h₁én\nProto-Indo-European *-tér\nProto-Indo-European *h₁entér\nProto-Indo-European *h₂én\nProto-Indo-European *dʰeh₁-?\nProto-Indo-European *-dʰi\n?\nProto-Indo-European *(H)n̥dʰí\nProto-Indo-European *-ér\nProto-Indo-European *(H)n̥dʰér\nProto-Germanic *under\nProto-West Germanic *undar\nOld English under-\nMiddle English under-\nEnglish under-\nProto-Indo-European *wed-\nProto-Indo-European *-r̥\nProto-Indo-European *wódr̥\nProto-Germanic *watōr\nProto-West Germanic *watar\nOld English wæter\nMiddle English water\nEnglish water\nEnglish underwater\nMiddle English breethder.\nMiddle English brethen\nEnglish breathe\nProto-Germanic *-ungō\nOld English -ung\nMiddle English -ynge\nEnglish -ing\nEnglish breathing\nProto-Indo-European *h₂éd\nProto-Italic *ad\nProto-Italic *ad-\nLatin ad-\nProto-Indo-European *perh₃-\nProto-Indo-European *pr̥h₃o-\nProto-Italic *paro-\n▲\nProto-Indo-European *-éh₂\nProto-Indo-European *-yéti\nProto-Indo-European *-eh₂yéti\nProto-Indo-European *-h₂tiinflu.\nProto-Italic *-ājō\nProto-Italic *-āō\nLatin -ō\nLatin parō\nLatin apparō\nProto-Indo-European *-tus\nProto-Italic *-tus\nLatin -tus\nLatin apparātuslbor.\nEnglish apparatus\nEnglish SCUBA\nEnglish scuba"
    }
  ],
  "links": [
    [
      "*swé",
      "Reconstruction:Proto-Indo-European/swé"
    ],
    [
      "*selbʰ-",
      "Reconstruction:Proto-Indo-European/selbʰ-"
    ],
    [
      "*selbaz",
      "Reconstruction:Proto-Germanic/selbaz"
    ],
    [
      "self",
      "self#Old_English"
    ],
    [
      "self-",
      "self-#Old_English"
    ],
    [
      "self-",
      "self-#Middle_English"
    ],
    [
      "self-",
      "self-#English"
    ],
    [
      "*ḱe",
      "Reconstruction:Proto-Indo-European/ḱe#Proto-Indo-European:_here"
    ],
    [
      "*ḱóm",
      "Reconstruction:Proto-Indo-European/ḱóm#Proto-Indo-European:_beside"
    ],
    [
      "*kom",
      "Reconstruction:Proto-Italic/kom#Proto-Italic:_with"
    ],
    [
      "*kom-",
      "Reconstruction:Proto-Italic/kom-#Proto-Italic:_with"
    ],
    [
      "con-",
      "con-#Latin"
    ],
    [
      "*ten-",
      "Reconstruction:Proto-Indo-European/ten-"
    ],
    [
      "*-yéti",
      "Reconstruction:Proto-Indo-European/-yéti"
    ],
    [
      "*tenēō",
      "Reconstruction:Proto-Italic/tenēō"
    ],
    [
      "teneō",
      "teneo#Latin"
    ],
    [
      "contineō",
      "contineo#Latin"
    ],
    [
      "continēre",
      "continere#Latin"
    ],
    [
      "contenir",
      "contenir#Old_French"
    ],
    [
      "conteinen",
      "conteinen#Middle_English"
    ],
    [
      "contain",
      "contain#English"
    ],
    [
      "*-tós",
      "Reconstruction:Proto-Indo-European/-tós#Proto-Indo-European:_verbal_adjectives"
    ],
    [
      "-ed",
      "-ed#Old_English:_past-participle"
    ],
    [
      "*-h₂",
      "Reconstruction:Proto-Indo-European/-h₂#Proto-Indo-European:_collective_nouns"
    ],
    [
      "*-éh₂",
      "Reconstruction:Proto-Indo-European/-éh₂#Proto-Indo-European:_collective_nouns"
    ],
    [
      "*-tós",
      "Reconstruction:Proto-Indo-European/-tós#Proto-Indo-European:_verbal_adjectives"
    ],
    [
      "*-eh₂tos",
      "Reconstruction:Proto-Indo-European/-eh₂tos#Proto-Indo-European:_adjectival"
    ],
    [
      "*-ōdaz",
      "Reconstruction:Proto-Germanic/-ōdaz#Proto-Germanic:_adjectival"
    ],
    [
      "-od",
      "-od#Old_English"
    ],
    [
      "-ed",
      "-ed#Middle_English:_past_participle"
    ],
    [
      "-ed",
      "-ed#English:_past_participle"
    ],
    [
      "contained",
      "contained#English"
    ],
    [
      "self-contained",
      "self-contained#English"
    ],
    [
      "*h₁én",
      "Reconstruction:Proto-Indo-European/h₁én#Proto-Indo-European:_in"
    ],
    [
      "*-tér",
      "Reconstruction:Proto-Indo-European/-tér"
    ],
    [
      "*h₁entér",
      "Reconstruction:Proto-Indo-European/h₁entér"
    ],
    [
      "*h₂én",
      "Reconstruction:Proto-Indo-European/h₂én"
    ],
    [
      "*dʰeh₁-",
      "Reconstruction:Proto-Indo-European/dʰeh₁-#Proto-Indo-European:_do"
    ],
    [
      "*-dʰi",
      "Reconstruction:Proto-Indo-European/-dʰi"
    ],
    [
      "*(H)n̥dʰí",
      "Reconstruction:Proto-Indo-European/(H)n̥dʰí"
    ],
    [
      "*-ér",
      "Reconstruction:Proto-Indo-European/-er"
    ],
    [
      "*(H)n̥dʰér",
      "Reconstruction:Proto-Indo-European/(H)n̥dʰér"
    ],
    [
      "*under",
      "Reconstruction:Proto-Germanic/under"
    ],
    [
      "*undar",
      "Reconstruction:Proto-West Germanic/undar"
    ],
    [
      "under-",
      "under-#Old_English"
    ],
    [
      "under-",
      "under-#Middle_English"
    ],
    [
      "under-",
      "under-#English"
    ],
    [
      "*wed-",
      "Reconstruction:Proto-Indo-European/wed-#Proto-Indo-European:_water"
    ],
    [
      "*-r̥",
      "Reconstruction:Proto-Indo-European/-r̥#Proto-Indo-European:_mass_nouns"
    ],
    [
      "*wódr̥",
      "Reconstruction:Proto-Indo-European/wódr̥#Proto-Indo-European:_water"
    ],
    [
      "*watōr",
      "Reconstruction:Proto-Germanic/watōr#Proto-Germanic:_water"
    ],
    [
      "*watar",
      "Reconstruction:Proto-West Germanic/watar#Proto-West_Germanic:_water"
    ],
    [
      "wæter",
      "wæter#Old_English:_water"
    ],
    [
      "water",
      "water#Middle_English:_liquid"
    ],
    [
      "water",
      "water#English"
    ],
    [
      "underwater",
      "underwater#English"
    ],
    [
      "breeth",
      "breeth#Middle_English"
    ],
    [
      "brethen",
      "brethen#Middle_English"
    ],
    [
      "breathe",
      "breathe#English"
    ],
    [
      "*-ungō",
      "Reconstruction:Proto-Germanic/-ungō#Proto-Germanic:_noun_suffix"
    ],
    [
      "-ung",
      "-ung#Old_English:_gerund_noun"
    ],
    [
      "-ynge",
      "-ynge#Middle_English:_gerund_noun"
    ],
    [
      "-ing",
      "-ing#English:_gerund_noun"
    ],
    [
      "breathing",
      "breathing#English"
    ],
    [
      "*h₂éd",
      "Reconstruction:Proto-Indo-European/h₂éd#Proto-Indo-European:_at"
    ],
    [
      "*ad",
      "Reconstruction:Proto-Italic/ad#Proto-Italic:_to"
    ],
    [
      "*ad-",
      "Reconstruction:Proto-Italic/ad-#Proto-Italic:_to"
    ],
    [
      "ad-",
      "ad-#Latin"
    ],
    [
      "*perh₃-",
      "Reconstruction:Proto-Indo-European/perh₃-"
    ],
    [
      "*-éh₂",
      "Reconstruction:Proto-Indo-European/-éh₂#Proto-Indo-European:_collective_nouns"
    ],
    [
      "*-yéti",
      "Reconstruction:Proto-Indo-European/-yéti#Proto-Indo-European:_intransitive_verbs"
    ],
    [
      "*-eh₂yéti",
      "Reconstruction:Proto-Indo-European/-eh₂yéti#Proto-Indo-European:_suf"
    ],
    [
      "*-h₂ti",
      "Reconstruction:Proto-Indo-European/-h₂ti"
    ],
    [
      "*-āō",
      "Reconstruction:Proto-Italic/-āō#Proto-Italic:_suf"
    ],
    [
      "-ō",
      "-o#Latin:_denominative"
    ],
    [
      "parō",
      "paro#Latin:_arrange"
    ],
    [
      "apparō",
      "apparo#Latin"
    ],
    [
      "*-tus",
      "Reconstruction:Proto-Indo-European/-tus#Proto-Indo-European:_action_noun"
    ],
    [
      "*-tus",
      "Reconstruction:Proto-Italic/-tus"
    ],
    [
      "-tus",
      "-tus#Latin:_action_noun"
    ],
    [
      "apparātus",
      "apparatus#Latin:_preparation"
    ],
    [
      "apparatus",
      "apparatus#English"
    ],
    [
      "SCUBA",
      "SCUBA#English"
    ],
    [
      "SCUBA",
      "SCUBA#English"
    ],
    [
      "self-contained",
      "self-contained#English"
    ],
    [
      "underwater",
      "underwater#English"
    ],
    [
      "breathing",
      "breathe#English"
    ],
    [
      "apparatus",
      "apparatus#English"
    ],
    [
      "anacronym",
      "anacronym"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "verb",
      "glosses": [
        "To perform scuba diving."
      ],
      "tags": [
        "rare"
      ],
      "recordId": "398b05955257ded808232099a8d912a67330f6498ee554562339e7193b131e6a",
      "rawRecordSha256": "466a34c0e889ffca55bee11c963311e8d6005595aad20efe3d3ed933b08b665d",
      "sourceRecordOrdinal": 201484
    },
    {
      "pos": "noun",
      "glosses": [
        "An apparatus carried by a diver, which includes a tank holding compressed, filtered air and a regulator which delivers the air to the diver at ambient pressure which can be used underwater."
      ],
      "tags": [],
      "recordId": "b871f419a80bceede89ddb9ef85e227fbf0cb6481ef014692c75ec1acfd92a94",
      "rawRecordSha256": "5f0e4eea8988cebdccd0e71efd355d625de45bd8e81c086647f94525529bfec2",
      "sourceRecordOrdinal": 201483
    }
  ],
  "omittedAuxiliaryFields": {
    "templates": 0,
    "links": 0,
    "references": 0,
    "descendants": 0,
    "lexicalRecords": 0,
    "lexicalSenses": 0,
    "glosses": 0
  }
}

Where this record stops

This page does not supply an independently verified sound-change sequence, first-use manuscript or complete family tree unless a cited analysis explicitly establishes one. Missing detail here is a limit of this record—not a claim that humanity knows nothing more.

An older meaning does not determine what a word must mean today. Follow the sources, preserve disagreements, and keep ancestry separate from interpretation.

Contribute located evidence for scuba →

Source and snapshot

Imported from Wiktionary contributors; extracted by Tatu Ylonen / Wiktextract / Kaikki.org. Selected fields are reformatted and grouped; wording, source identity and etymology sections are retained. CC-BY-SA-4.0 applies to the imported source material.

Dump: 2026-10-01 · Extracted: 2026-10-30. These are snapshot dates, not the word’s first attestation or the page’s revision date.

Source entry and bibliography ↗Wiktionary revision history ↗Acquisition and rights ledger
Machine-source provenance
Source SHA-256
5ff2c072f8099f2d2ce484bd6957bf179f046d2ad37bc36555edf8bb84cb5291
Import run
73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID
w-c2N1YmE