Etymology

assertion

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Today it means: The act of asserting; positive declaration or averment. Full definition →

Middle English assercioun ← Latin assertiō
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The story

  1. Latin · derived fromassertiō
  2. Middle English · inherited fromassercioun
  3. English todayassertion

From Middle English assercioun, from Latin assertiō. By surface analysis, assert + -ion.

Etymology from Wiktionary, CC BY-SA 4.0.