Etymology

dilater

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Today it means: One who, or that which, dilates, expands, or enlarges. Full definition →

English dilate ← Middle English dilaten ← Old French dilater
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The story

  1. Latindīlātō
  2. Old Frenchdilater
  3. Middle Englishdilaten
  4. Englishdilate
  5. English todaydilater

From dilate + -er.

Etymology from Wiktionary, CC BY-SA 4.0.