*SET-U

English word origin

Etymology of lilac

Etymology tree Proto-Indo-European *neyH-der.? Sanskrit नील॑ (nī́la)der. Middle Persian 𐭭𐭩𐭫 (nīl) Classical Persian نِیل (nīl) Middle Persian 𐭪 (k /⁠-ak⁠/) Classical Persian ـَک (-ak) Classical Persian لِیلَک (līlak)

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.

Unnumbered source etymology · variant 1/2

Original entry ↗
adj

Having a pale purple colour. · Of a cat or its fur: having a pale brown colour, lighter than chocolate.

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

Etymology tree Proto-Indo-European *neyH-der.? Sanskrit नील॑ (nī́la)der. Middle Persian 𐭭𐭩𐭫 (nīl) Classical Persian نِیل (nīl) Middle Persian 𐭪 (k /⁠-ak⁠/) Classical Persian ـَک (-ak) Classical Persian لِیلَک (līlak)bor. Arabic لِيلَك (līlak)bor. French lilacbor. English lilac From obsolete French lilac (now lilas), from Arabic لِيلَك (līlak).

Relationships mentioned by the source

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

Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "ety",
      "args": {
        "1": "en",
        "2": ":bor",
        "3": "fr:lilac",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *neyH-der.?\nSanskrit नील॑ (nī́la)der.\nMiddle Persian 𐭭𐭩𐭫 (nīl)\nClassical Persian نِیل (nīl)\nMiddle Persian 𐭪 (k /⁠-ak⁠/)\nClassical Persian ـَک (-ak)\nClassical Persian لِیلَک (līlak)bor.\nArabic لِيلَك (līlak)bor.\nFrench lilacbor.\nEnglish lilac\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"bor.\", \"keyword_label\" : \"Borrowed from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"bor.\", \"keyword_label\" : \"Borrowed from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"id\" : \"indigo\", \"children\" : [ { \"terms\" : [ { \"transliteration\" : \"nīl\", \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"is_uncertain\" : true, \"id\" : \"shine\", \"children\" : [ ], \"status\" : \"missing\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*neyH-\", \"gloss\" : \"to be excited, shine\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Sanskrit\", \"term\" : \"नील॑\", \"status\" : \"ok\", \"lang\" : \"sa\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Middle Persian\", \"term\" : \"𐭭𐭩𐭫\", \"status\" : \"inline\", \"lang\" : \"pal\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Classical Persian\", \"term\" : \"نِیل\", \"lang\" : \"fa-cls\" }, { \"children\" : [ { \"terms\" : [ { \"transcription\" : \"-ak\", \"children\" : [ ], \"lang_name\" : \"Middle Persian\", \"term\" : \"𐭪\", \"status\" : \"missing\", \"lang\" : \"pal\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Classical Persian\", \"term\" : \"ـَک\", \"status\" : \"ok\", \"lang\" : \"fa-cls\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Classical Persian\", \"term\" : \"لِیلَک\", \"status\" : \"inline\", \"lang\" : \"fa-cls\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"Arabic\", \"term\" : \"لِيلَك\", \"status\" : \"ok\", \"lang\" : \"ar\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"French\", \"term\" : \"lilac\", \"status\" : \"ok\", \"lang\" : \"fr\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"English\", \"term\" : \"lilac\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"lilac\">"
    },
    {
      "name": "bor",
      "args": {
        "1": "en",
        "2": "fr",
        "3": "lilac"
      },
      "expansion": "French lilac"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "ar",
        "3": "لِيلَك"
      },
      "expansion": "Arabic لِيلَك (līlak)"
    },
    {
      "name": "ety",
      "args": {
        "1": "en",
        "2": ":bor",
        "3": "fr:lilac",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *neyH-der.?\nSanskrit नील॑ (nī́la)der.\nMiddle Persian 𐭭𐭩𐭫 (nīl)\nClassical Persian نِیل (nīl)\nMiddle Persian 𐭪 (k /⁠-ak⁠/)\nClassical Persian ـَک (-ak)\nClassical Persian لِیلَک (līlak)bor.\nArabic لِيلَك (līlak)bor.\nFrench lilacbor.\nEnglish lilac"
    }
  ],
  "links": [
    [
      "*neyH-",
      "Reconstruction:Proto-Indo-European/neyH-#Proto-Indo-European:_shine"
    ],
    [
      "नील॑",
      "नील#Sanskrit"
    ],
    [
      "𐭭𐭩𐭫",
      "𐭭𐭩𐭫#Middle_Persian"
    ],
    [
      "نِیل",
      "نیل#Persian:_indigo"
    ],
    [
      "𐭪",
      "𐭪#Middle_Persian"
    ],
    [
      "ـَک",
      "ـک#Persian"
    ],
    [
      "لِیلَک",
      "لیلک#Persian"
    ],
    [
      "لِيلَك",
      "ليلك#Arabic"
    ],
    [
      "lilac",
      "lilac#French"
    ],
    [
      "lilac",
      "lilac#French"
    ],
    [
      "lilas",
      "lilas#French"
    ],
    [
      "لِيلَك",
      "ليلك#Arabic"
    ]
  ],
  "references": [],
  "descendants": [
    {
      "lang": "Cornish",
      "lang_code": "kw",
      "word": "leylak",
      "raw_tags": [
        "borrowed"
      ]
    },
    {
      "lang": "Irish",
      "lang_code": "ga",
      "word": "líológ",
      "raw_tags": [
        "borrowed"
      ]
    },
    {
      "lang": "Manx",
      "lang_code": "gv",
      "word": "laylac",
      "raw_tags": [
        "borrowed"
      ]
    },
    {
      "lang": "Scottish Gaelic",
      "lang_code": "gd",
      "word": "liagh",
      "raw_tags": [
        "borrowed"
      ]
    },
    {
      "lang": "Welsh",
      "lang_code": "cy",
      "word": "lelog",
      "raw_tags": [
        "borrowed"
      ]
    }
  ],
  "lexical": [
    {
      "pos": "adj",
      "glosses": [
        "Having a pale purple colour.",
        "Of a cat or its fur: having a pale brown colour, lighter than chocolate."
      ],
      "tags": [],
      "recordId": "6389d59a3af37c2fcb4a0de462eaade1255cb5085d540e23d6d40771c832bb5a",
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      "sourceRecordOrdinal": 19620
    }
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  }
}

Unnumbered source etymology · variant 2/2

Original entry ↗
noun

A large shrub of the genus Syringa, especially Syringa vulgaris, bearing white, pale-pink, or purple flowers. · A flower of the lilac shrub. · A pale purple color, the color of some lilac flowers. · A cat having a lilac-colored (pale brown) coat.

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

Etymology tree Proto-Indo-European *neyH-der.? Sanskrit नील॑ (nī́la)der. Middle Persian 𐭭𐭩𐭫 (nīl) Classical Persian نِیل (nīl) Middle Persian 𐭪 (k /⁠-ak⁠/) Classical Persian ـَک (-ak) Classical Persian لِیلَک (līlak)bor. Arabic لِيلَك (līlak)bor. French lilacbor. English lilac From obsolete French lilac (now lilas), from Arabic لِيلَك (līlak).

Relationships mentioned by the source

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

Inspect preserved source fields

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

{
  "templates": [
    {
      "name": "ety",
      "args": {
        "1": "en",
        "2": ":bor",
        "3": "fr:lilac",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *neyH-der.?\nSanskrit नील॑ (nī́la)der.\nMiddle Persian 𐭭𐭩𐭫 (nīl)\nClassical Persian نِیل (nīl)\nMiddle Persian 𐭪 (k /⁠-ak⁠/)\nClassical Persian ـَک (-ak)\nClassical Persian لِیلَک (līlak)bor.\nArabic لِيلَك (līlak)bor.\nFrench lilacbor.\nEnglish lilac\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"bor.\", \"keyword_label\" : \"Borrowed from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"bor.\", \"keyword_label\" : \"Borrowed from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"id\" : \"indigo\", \"children\" : [ { \"terms\" : [ { \"transliteration\" : \"nīl\", \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"is_uncertain\" : true, \"id\" : \"shine\", \"children\" : [ ], \"status\" : \"missing\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*neyH-\", \"gloss\" : \"to be excited, shine\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Sanskrit\", \"term\" : \"नील॑\", \"status\" : \"ok\", \"lang\" : \"sa\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"Middle Persian\", \"term\" : \"𐭭𐭩𐭫\", \"status\" : \"inline\", \"lang\" : \"pal\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Classical Persian\", \"term\" : \"نِیل\", \"lang\" : \"fa-cls\" }, { \"children\" : [ { \"terms\" : [ { \"transcription\" : \"-ak\", \"children\" : [ ], \"lang_name\" : \"Middle Persian\", \"term\" : \"𐭪\", \"status\" : \"missing\", \"lang\" : \"pal\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Classical Persian\", \"term\" : \"ـَک\", \"status\" : \"ok\", \"lang\" : \"fa-cls\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Classical Persian\", \"term\" : \"لِیلَک\", \"status\" : \"inline\", \"lang\" : \"fa-cls\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"Arabic\", \"term\" : \"لِيلَك\", \"status\" : \"ok\", \"lang\" : \"ar\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"French\", \"term\" : \"lilac\", \"status\" : \"ok\", \"lang\" : \"fr\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"English\", \"term\" : \"lilac\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"lilac\">"
    },
    {
      "name": "bor",
      "args": {
        "1": "en",
        "2": "fr",
        "3": "lilac"
      },
      "expansion": "French lilac"
    },
    {
      "name": "der",
      "args": {
        "1": "en",
        "2": "ar",
        "3": "لِيلَك"
      },
      "expansion": "Arabic لِيلَك (līlak)"
    },
    {
      "name": "ety",
      "args": {
        "1": "en",
        "2": ":bor",
        "3": "fr:lilac",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *neyH-der.?\nSanskrit नील॑ (nī́la)der.\nMiddle Persian 𐭭𐭩𐭫 (nīl)\nClassical Persian نِیل (nīl)\nMiddle Persian 𐭪 (k /⁠-ak⁠/)\nClassical Persian ـَک (-ak)\nClassical Persian لِیلَک (līlak)bor.\nArabic لِيلَك (līlak)bor.\nFrench lilacbor.\nEnglish lilac"
    }
  ],
  "links": [
    [
      "*neyH-",
      "Reconstruction:Proto-Indo-European/neyH-#Proto-Indo-European:_shine"
    ],
    [
      "नील॑",
      "नील#Sanskrit"
    ],
    [
      "𐭭𐭩𐭫",
      "𐭭𐭩𐭫#Middle_Persian"
    ],
    [
      "نِیل",
      "نیل#Persian:_indigo"
    ],
    [
      "𐭪",
      "𐭪#Middle_Persian"
    ],
    [
      "ـَک",
      "ـک#Persian"
    ],
    [
      "لِیلَک",
      "لیلک#Persian"
    ],
    [
      "لِيلَك",
      "ليلك#Arabic"
    ],
    [
      "lilac",
      "lilac#French"
    ],
    [
      "lilac",
      "lilac#French"
    ],
    [
      "lilas",
      "lilas#French"
    ],
    [
      "لِيلَك",
      "ليلك#Arabic"
    ]
  ],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "A large shrub of the genus Syringa, especially Syringa vulgaris, bearing white, pale-pink, or purple flowers.",
        "A flower of the lilac shrub.",
        "A pale purple color, the color of some lilac flowers.",
        "A cat having a lilac-colored (pale brown) coat."
      ],
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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 lilac →

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-bGlsYWM