Etymology

assertive

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Today it means: Boldly self-assured; confident without being aggressive. Full definition →

Medieval Latin assertīvus
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The story

  1. Medieval Latin · borrowed fromassertīvus
  2. English todayassertive

Borrowed from Medieval Latin assertīvus. Synchronically analyzable as assert + -ive.

Etymology from Wiktionary, CC BY-SA 4.0.