Etymology

dimidiation

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Today it means: The act of dividing into halves. Full definition →

Middle English dimydicion ← Late Latin dīmidiātiō
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The story

  1. Late Latin · derived fromdīmidiātiō
  2. Middle English · derived fromdimydicion
  3. English todaydimidiation

Continuing the Middle English dimydicion (circa 1425, in an arithmetical sense), from the Late Latin dīmidiātiō.

Etymology from Wiktionary, CC BY-SA 4.0.