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sane

[seyn]
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adjective, san·er, san·est.
  1. free from mental derangement; having a sound, healthy mind: a sane person.
  2. having or showing reason, sound judgment, or good sense: sane advice.
  3. sound; healthy.
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Origin of sane

First recorded in 1620–30, sane is from the Latin word sānus healthy
Related formssane·ly, adverbsane·ness, nounnon·sane, adjectivenon·sane·ly, adverbnon·sane·ness, noun
Can be confusedsane Seine

Synonyms

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2. reasonable, sensible, judicious, level-headed.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for saner

sane

adjective
  1. sound in mind; free from mental disturbance
  2. having or showing reason, good judgment, or sound sense
  3. obsolete healthy
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Derived Formssanely, adverbsaneness, noun

Word Origin

C17: from Latin sānus healthy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for saner

sane

adj.

1721, back-formation from sanity or else from Latin sanus "sound, healthy," in figurative or transferred use, "of sound mind, rational, sane," also, of style, "correct;" of uncertain origin. Used earlier, of the body, with the sense of "healthy" (1620s). Related: Sanely.

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Online Etymology Dictionary, © 2010 Douglas Harper

saner in Medicine

sane

(sān)
adj.
  1. Of sound mind; mentally healthy.
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Related formssaneness n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.