*SET-U

English word origin

Etymology of eka-

Etymology tree Proto-Indo-European *ís? Proto-Indo-European *h₁óynosder. Proto-Indo-Iranian *Háykas Proto-Indo-Aryan *Háykas Sanskrit एक (eka)bor. English eka- Borrowed from Sanskrit एक (eka, “one, first”).

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 ↗
prefix

Used to form prototype names for as-yet undiscovered elements, when prepended to the known element above them in the same group of the periodic table.

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

Etymology tree Proto-Indo-European *ís? Proto-Indo-European *h₁óynosder. Proto-Indo-Iranian *Háykas Proto-Indo-Aryan *Háykas Sanskrit एक (eka)bor. English eka- Borrowed from Sanskrit एक (eka, “one, first”).

Inspect preserved source fields

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

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    {
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      "args": {
        "1": "en",
        "2": ":bor",
        "3": "sa:एक<t:one, first>",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *ís?\nProto-Indo-European *h₁óynosder.\nProto-Indo-Iranian *Háykas\nProto-Indo-Aryan *Háykas\nSanskrit एक (eka)bor.\nEnglish eka-\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"gloss\" : \"one, first\", \"children\" : [ { \"terms\" : [ { \"id\" : \"one\", \"children\" : [ { \"terms\" : [ { \"id\" : \"one\", \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"id\" : \"one\", \"children\" : [ { \"terms\" : [ { \"is_uncertain\" : true, \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*ís\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*h₁óynos\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"derived\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-Iranian\", \"term\" : \"*Háykas\", \"lang\" : \"iir-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-Aryan\", \"term\" : \"*Háykas\", \"lang\" : \"inc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Sanskrit\", \"term\" : \"एक\", \"status\" : \"ok\", \"lang\" : \"sa\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"English\", \"term\" : \"eka-\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"eka-\">\nBorrowed from Sanskrit एक (eka, “one, first”)."
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        "1": "en",
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        "3": "sa:एक<t:one, first>",
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      },
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    }
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    [
      "*ís",
      "Reconstruction:Proto-Indo-European/ís"
    ],
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      "*h₁óynos",
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    ],
    [
      "*Háykas",
      "Reconstruction:Proto-Indo-Iranian/Háykas#Proto-Indo-Iranian:_one"
    ],
    [
      "*Háykas",
      "Reconstruction:Proto-Indo-Aryan/Háykas#Proto-Indo-Aryan:_one"
    ],
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      "एक",
      "एक#Sanskrit"
    ],
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      "एक",
      "एक#Sanskrit"
    ]
  ],
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  "lexical": [
    {
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        "Used to form prototype names for as-yet undiscovered elements, when prepended to the known element above them in the same group of the periodic table."
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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 eka- →

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-ZWthLQ