Etymology

have reason

Today it means: To be right. Full definition →

First used 15th–18th c.Middle French avoir raison
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The story

  1. Middle French · derived fromavoir raison
  2. English todayhave reason

From have + reason, partly after Middle French avoir raison.

First known use, by meaning

  • 15th–18th c. To be right.

Etymology from Wiktionary, CC BY-SA 4.0.