Etymology

prophylactic

pro·phy·lac·tic
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Today it means: A medicine which preserves or defends against disease; a preventive. Full definition →

Latin prophylacticus ← Ancient Greek προφυλακτικός
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The story

  1. Ancient Greek · derived fromπροφυλακτικός“prophylactic”
  2. Latin · derived fromprophylacticus
  3. English todayprophylactic

From Latin prophylacticus, from Ancient Greek προφυλακτικός (prophulaktikós, “prophylactic”).

Etymology from Wiktionary, CC BY-SA 4.0.