Etymology

supine

sup·ine
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Today it means: Lying on its back. Full definition →

Latin supīnus ← Middle English supin ← Middle French supin
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The story

  1. Latin · derived fromsupīnum
  2. Middle French · derived fromsupin“(grammar) supine”
  3. Middle English · inherited fromsupin“supine of a Latin verb”
  4. Latin · borrowed fromsupīnus
  5. English todaysupine

The adjective is borrowed from Latin supīnus, from *sup- (see sub (“under”)) + -īnus (“of, pertaining to”). The word is cognate with Catalan supí, Italian supino, Old French sovin, Middle French souvin, Anglo-Norman supin, Old Occitan sobin, sopin, Portuguese supino, Spanish supino. Partly displaced Old English upweard (“upward, supine”), whence Modern English upward. The noun is from Late Middle English supin (“supine of a Latin verb”) or Middle French supin (“(grammar) supine”), from Latin supīnum, (ellipsis of supīnum verbum (“supine verb”)), from supīnus; further etymology above.

Etymology from Wiktionary, CC BY-SA 4.0.