*SET-U

English word origin

Etymology of coast

Etymology tree Latin costalbor. Old French costeder. Middle English coste English coast From Middle English coste (“rib; side of the body”), from Old French coste (“rib; side of an object; coast”) (modern French côte (“r

2 source sectionsExtended source reportWiktionary original ↗
In this entry · 2 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.

Source etymology 1

Original entry ↗
noun

The edge of the land where it meets an ocean, sea, gulf, bay, or large lake. · The side or edge of something. · A region of land; a district or country. · A region of the air or heavens.

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

Etymology tree Latin costalbor. Old French costeder. Middle English coste English coast From Middle English coste (“rib; side of the body”), from Old French coste (“rib; side of an object; coast”) (modern French côte (“rib; coast; hill, slope”)), from Latin costa (“rib; side, wall”). Doublet of costa. Compare typologically cape < Latin caput, ness (akin to nose), Bulgarian нос (nos, “nose; …; cape, promontory, foreland, gore”), Macedonian ’рт (’rt), Serbo-Croatian рт (“cape, promontory, headland”) < Proto-Slavic *rъtъ (whence Russian рот (rot)).

Relationships mentioned by the source

These are extracted mentions, not a timeline or a verified sequence of immediate parents.

  • Inherited-form mentioncosteenm · rib; side of the body
  • Derivation mentioncostefro · rib; side of an object; coast
  • Cognate mentioncôtefr · rib; coast; hill, slope
  • Derivation mentioncostala · rib; side, wall
  • Doublet mentioncostaen
Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "ety",
      "args": {
        "1": "en",
        "2": ":inh",
        "3": "enm:coste<ety:der<fro:coste>>",
        "id": "edge",
        "tree": "1"
      },
      "expansion": "Etymology tree\nLatin costalbor.\nOld French costeder.\nMiddle English coste\nEnglish coast\n[Appendix:Glossary#derived_terms|Derived]] from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"lbor.\", \"keyword_label\" : \"Learned borrowing from\", \"terms\" : [ { \"id\" : \"rib\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"costa\", \"lang\" : \"la\" } ], \"keyword\" : \"lbor\" } ], \"lang_name\" : \"Old French\", \"term\" : \"coste\", \"status\" : \"ok\", \"lang\" : \"fro\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Middle English\", \"term\" : \"coste\", \"status\" : \"inline\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"English\", \"term\" : \"coast\", \"lang\" : \"en\" }\" data-id=\"edge\" data-lang=\"en\" data-title=\"coast\" id=\"English:_edge\">"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "coste",
        "t": "rib; side of the body"
      },
      "expansion": "Middle English coste (“rib; side of the body”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "fro",
        "3": "coste",
        "t": "rib; side of an object; coast"
      },
      "expansion": "Old French coste (“rib; side of an object; coast”)"
    },
    {
      "name": "cog",
      "args": {
        "1": "fr",
        "2": "côte",
        "t": "rib; coast; hill, slope"
      },
      "expansion": "French côte (“rib; coast; hill, slope”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "la",
        "3": "costa",
        "t": "rib; side, wall"
      },
      "expansion": "Latin costa (“rib; side, wall”)"
    },
    {
      "name": "doublet",
      "args": {
        "1": "en",
        "2": "costa"
      },
      "expansion": "Doublet of costa"
    },
    {
      "name": "m+",
      "args": {
        "1": "la",
        "2": "caput"
      },
      "expansion": "Latin caput"
    },
    {
      "name": "m+",
      "args": {
        "1": "bg",
        "2": "нос",
        "3": "",
        "4": "nose; …; cape, promontory, foreland, gore"
      },
      "expansion": "Bulgarian нос (nos, “nose; …; cape, promontory, foreland, gore”)"
    },
    {
      "name": "m+",
      "args": {
        "1": "mk",
        "2": "’рт"
      },
      "expansion": "Macedonian ’рт (’rt)"
    },
    {
      "name": "m+",
      "args": {
        "1": "sh",
        "2": "рт",
        "3": "",
        "4": "cape, promontory, headland"
      },
      "expansion": "Serbo-Croatian рт (“cape, promontory, headland”)"
    },
    {
      "name": "m+",
      "args": {
        "1": "sla-pro",
        "2": "*rъtъ"
      },
      "expansion": "Proto-Slavic *rъtъ"
    },
    {
      "name": "m+",
      "args": {
        "1": "ru",
        "2": "рот"
      },
      "expansion": "Russian рот (rot)"
    },
    {
      "name": "ety",
      "args": {
        "1": "en",
        "2": ":inh",
        "3": "enm:coste<ety:der<fro:coste>>",
        "id": "edge",
        "tree": "1"
      },
      "expansion": "Etymology tree\nLatin costalbor.\nOld French costeder.\nMiddle English coste\nEnglish coast"
    }
  ],
  "links": [
    [
      "costa",
      "costa#Latin:_rib"
    ],
    [
      "coste",
      "coste#Old_French"
    ],
    [
      "coste",
      "coste#Middle_English"
    ],
    [
      "coste",
      "coste#Middle_English"
    ],
    [
      "coste",
      "coste#Old_French"
    ],
    [
      "côte",
      "côte#French"
    ],
    [
      "costa",
      "costa#Latin"
    ],
    [
      "costa",
      "costa#English"
    ],
    [
      "cape",
      "cape#English"
    ],
    [
      "caput",
      "caput#Latin"
    ],
    [
      "ness",
      "ness#English"
    ],
    [
      "nose",
      "nose#English"
    ],
    [
      "нос",
      "нос#Bulgarian"
    ],
    [
      "’рт",
      "’рт#Macedonian"
    ],
    [
      "рт",
      "рт#Serbo-Croatian"
    ],
    [
      "*rъtъ",
      "Reconstruction:Proto-Slavic/rъtъ"
    ],
    [
      "рот",
      "рот#Russian"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "The edge of the land where it meets an ocean, sea, gulf, bay, or large lake.",
        "The side or edge of something.",
        "A region of land; a district or country.",
        "A region of the air or heavens."
      ],
      "tags": [
        "obsolete"
      ],
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}

Source etymology 2

Original entry ↗
verb

To glide along without adding energy; to allow a vehicle to continue moving forward after disengaging the engine or ceasing to apply motive power. · To sail along a coast. · To make a minimal effort; to continue to do something in a routine way, without initiative or effort. · To draw near to; to approach; to keep near, or by the side of.

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

Etymology tree Latin costa Latin costicāreder. Old French costoierbor. Middle English costeien English coast From Middle English costeien (“to travel along a border or coast; to go alongside (something), skirt; to accompany, follow; to travel across, traverse; to be adjacent to, to border;”) [and other forms], from Anglo-Norman [Term?], Old French costoier (“to be at the side of”) […] (modern French côtoyer (“to pass alongside; (figuratively) to rub shoulders”)), from Latin costicāre, from Latin costa (“rib; side, wall”); see further at etymology 1.

Relationships mentioned by the source

These are extracted mentions, not a timeline or a verified sequence of immediate parents.

  • Inherited-form mentioncosteienenm · to travel along a border or coast; to go alongside (something), skirt; to accompany, follow; to travel across, traverse; to be adjacent to, to border;
  • Derivation mentioncostoierfro · to be at the side of
  • Cognate mentioncôtoyerfr · to pass alongside; (figuratively) to rub shoulders
  • Derivation mentioncosticārela
  • Derivation mentioncostala · rib; side, wall

This page abbreviates 3 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.

Inspect preserved source fields

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

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  "templates": [
    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":inh",
        "3": "enm:costeien<ety:bor<fro:costoier<ety:der<la:costicāre<ety:from<costa>>>>>>",
        "id": "glide",
        "tree": "1"
      },
      "expansion": "Etymology tree\nLatin costa\nLatin costicāreder.\nOld French costoierbor.\nMiddle English costeien\nEnglish coast\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Latin\", \"term\" : \"costa\", \"status\" : \"ok\", \"lang\" : \"la\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang_name\" : \"Latin\", \"term\" : \"costicāre\", \"status\" : \"inline\", \"lang\" : \"la\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Old French\", \"term\" : \"costoier\", \"status\" : \"inline\", \"lang\" : \"fro\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"Middle English\", \"term\" : \"costeien\", \"status\" : \"inline\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"English\", \"term\" : \"coast\", \"lang\" : \"en\" }\" data-id=\"glide\" data-lang=\"en\" data-title=\"coast\" id=\"English:_glide\">"
    },
    {
      "name": "inh",
      "args": {
        "1": "en",
        "2": "enm",
        "3": "costeien",
        "t": "to travel along a border or coast; to go alongside (something), skirt; to accompany, follow; to travel across, traverse; to be adjacent to, to border;"
      },
      "expansion": "Middle English costeien (“to travel along a border or coast; to go alongside (something), skirt; to accompany, follow; to travel across, traverse; to be adjacent to, to border;”)"
    },
    {
      "name": "nb...",
      "args": {
        "1": "cost, costay, coste, costey, costie, coost, coostie, costen, costien",
        "otherforms": "1"
      },
      "expansion": "[and other forms]"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "xno"
      },
      "expansion": "Anglo-Norman [Term?]"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "fro",
        "3": "costoier",
        "t": "to be at the side of"
      },
      "expansion": "Old French costoier (“to be at the side of”)"
    },
    {
      "name": "nb...",
      "args": {
        "1": "costeier, costier, costoiier"
      },
      "expansion": "[…]"
    },
    {
      "name": "cog",
      "args": {
        "1": "fr",
        "2": "côtoyer",
        "t": "to pass alongside; (figuratively) to rub shoulders"
      },
      "expansion": "French côtoyer (“to pass alongside; (figuratively) to rub shoulders”)"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "la",
        "3": "costicāre"
      },
      "expansion": "Latin costicāre"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "la",
        "3": "costa",
        "t": "rib; side, wall"
      },
      "expansion": "Latin costa (“rib; side, wall”)"
    },
    {
      "name": "etymon",
      "args": {
        "1": "en",
        "2": ":inh",
        "3": "enm:costeien<ety:bor<fro:costoier<ety:der<la:costicāre<ety:from<costa>>>>>>",
        "id": "glide",
        "tree": "1"
      },
      "expansion": "Etymology tree\nLatin costa\nLatin costicāreder.\nOld French costoierbor.\nMiddle English costeien\nEnglish coast"
    }
  ],
  "links": [
    [
      "costa",
      "costa#Latin"
    ],
    [
      "costicāre",
      "costicare#Latin"
    ],
    [
      "costoier",
      "costoier#Old_French"
    ],
    [
      "costeien",
      "costeien#Middle_English"
    ],
    [
      "costeien",
      "costeien#Middle_English"
    ],
    [
      "costoier",
      "costoier#Old_French"
    ],
    [
      "côtoyer",
      "côtoyer#French"
    ],
    [
      "costicāre",
      "costicare#Latin"
    ],
    [
      "costa",
      "costa#Latin"
    ],
    [
      "etymology 1",
      "#Etymology 1"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "verb",
      "glosses": [
        "To glide along without adding energy; to allow a vehicle to continue moving forward after disengaging the engine or ceasing to apply motive power.",
        "To sail along a coast.",
        "To make a minimal effort; to continue to do something in a routine way, without initiative or effort.",
        "To draw near to; to approach; to keep near, or by the side of."
      ],
      "tags": [
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        "figuratively",
        "obsolete"
      ],
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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 coast →

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
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Import run
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Permanent entry ID
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