compos mentis

[ kohm-pohs -men-tis; English kom-puhs-men-tis ]
/ ˈkoʊm poʊs ˈmɛn tɪs; English ˈkɒm pəsˈmɛn tɪs /

adjective

Latin. sane; mentally sound.

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Origin of compos mentis

Literally, “being in full possession of one's mind”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for compos mentis

compos mentis
/ Latin (ˈkɒmpəs ˈmɛntɪs) /

adjective

(postpositive) of sound mind; sane
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

Medical definitions for compos mentis

compos mentis
[ kŏmpəs mĕntĭs ]

adj.

Of sound mind; sane.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.