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ENGLISH · A WORD WITH POSSIBILITIES

thack.

To strike or thump (someone or something); to thwack.

5 characters1 syllables approx.English language

Meaning & usage

verb/θæk/General-American, Received-Pronunciation
  1. To strike or thump (someone or something); to thwack.

    dialectal · transitive
Where this word comes from

From Middle English thakken (“to stroke”), from Old English þaccian (“to touch gently, stroke, tap”), from Proto-West Germanic *þakwōn, from Proto-Germanic *þakwōną (“to touch lightly”), from Proto-Indo-European *teh₂g- (“to touch”). Cognate with Old Dutch þakolōn (“to stroke”), Old Norse þykkr (“a thwack, thump, blow”), Icelandic þjökka, þjaka (“to thwack, thump, beat”), Norwegian tjåka (“to strike, beat”), Latin tangō (“touch”). More at thwack, tangent.

noun/θæk/General-American, Received-Pronunciation
  1. A stroke; a thwack.

Where this word comes from

From Middle English thacce, from thakken (“to stroke”): see etymology 1.

intj/θæk/General-American, Received-Pronunciation
  1. The sound of a thack.

Where this word comes from

From Middle English thacce, from thakken (“to stroke”): see etymology 1.

noun/θæk/General-American, Received-Pronunciation
  1. The weatherproof outer layer of a roof, often specifically thatch.

    countable · uncountable
Where this word comes from

From Middle English thak, thakk, thakke, from Old English þæc, from Proto-West Germanic *þak, from Proto-Germanic *þaką, from Proto-Indo-European *teg-. Cognate with Dutch dak, Low German Dack, Danish tag (“roof”), German Dach (“roof”), Old Norse þak (“thatch, roof”). Akin to Latin toga (“garment”) and Ancient Greek στέγος (stégos, “roof”). See also thatch and deck.

verb/θæk/General-American, Received-Pronunciation
  1. To cover a roof with thack.

Where this word comes from

From Middle English thak, thakk, thakke, from Old English þæc, from Proto-West Germanic *þak, from Proto-Germanic *þaką, from Proto-Indo-European *teg-. Cognate with Dutch dak, Low German Dack, Danish tag (“roof”), German Dach (“roof”), Old Norse þak (“thatch, roof”). Akin to Latin toga (“garment”) and Ancient Greek στέγος (stégos, “roof”). See also thatch and deck.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.