Etymology

posterior

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Today it means: Relating to or denoting presentation of a fetus in which the rear or caudal end is nearest the cervix and emerges first at birth. Full definition →

Latin posterior ← Proto-Italic *posteros ← Proto-Indo-European *pósti
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The story

  1. Proto-Indo-European*pós
  2. Proto-Indo-European*pósti
  3. Proto-Italic*posti
  4. Proto-Italic*posteros
  5. Latinposterus
  6. Latinposterior
  7. English todayposterior

Borrowed from Latin posterior (“that comes or follows after; later, latter”).

Etymology from Wiktionary, CC BY-SA 4.0.