Etymology

threadbare

thread·bare
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Today it means: Of cloth, clothing, furnishings, etc.: frayed and worn to an extent that the nap is damaged and the warp and weft threads show; shabby, worn-out. Full definition →

Middle English thred-bar ← Old English þrǣd ← Proto-Germanic *þrēduz
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The story

  1. Proto-Indo-European · inherited from*bʰosós“bare; barefoot”
  2. Proto-Germanic · inherited from*bazaz“naked, bare”
  3. Old English · inherited frombær“naked, bare; unconcealed”
  4. Proto-Indo-European · inherited from*terh₁-“to drill, pierce; to rub; to turn, twist”
  5. Proto-Germanic · inherited from*þrēduz“thread; twisted fibre”
  6. Old English · inherited fromþrǣd“thread”
  7. Middle English · inherited fromthred-bar
  8. English todaythreadbare

PIE word *bʰosós From Middle English thred-bar, thred-bare (“of cloth, clothing, etc.: worn to such an extent that the warp and weft threads show, shabby, worn-out; (figurative) inadequate, poor”) [and other forms], from thred (“piece of textile twine”) (from Old English þrǣd (“thread”), from Proto-Germanic *þrēduz (“thread; twisted fibre”), ultimately from Proto-Indo-European *terh₁- (“to drill, pierce; to rub; to turn, twist”)) + bar, bare (“naked, unclothed, bare; not covered”) (from Old English bær (“naked, bare; unconcealed”), ultimately from Proto-Germanic *bazaz (“naked, bare”), from Proto-Indo-European *bʰosós (“bare; barefoot”)). The English word is analysable as thread + bare.

Words from the same roots

Old Englishþrǣd all →

thread

Proto-Germanic*þrēduz all →

thread

Proto-Indo-European*terh₁- all →

throwthresholdthrashdermathreshtruantdreideldetritivoreterebrantterebratulaterebratulid-treme

Old Englishbær all →

bare

Proto-Germanic*bazaz all →

barebarren

Etymology from Wiktionary, CC BY-SA 4.0.