Etymology

sane

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Today it means: Being in a healthy condition; not deranged; thinking rationally. Full definition →

Latin sānus
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The story

  1. Latin · learned borrowing fromsānus“healthy; sane”
  2. English todaysane

Learned borrowing from Latin sānus (“healthy; sane”). Doublet of sound.

Etymology from Wiktionary, CC BY-SA 4.0.