Defined: a pithy or witty saying
Origin of MOT: French, word, saying, from Old French, from Late Latin muttum grunt — First Known Use: 1813. NOUN (Merriam-Webster.com)
And with that, I”m gone. Peace-out!
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A witty or incisive remark.
[French, from Old French, word, saying, probably from Vulgar Latin *mttum, from Late Latin muttum, grunt, mutter, of imitative origin.]
(The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.)
short for bon mot
[via French from Vulgar Latin mottum (unattested) utterance, from Latin muttum a mutter, from muttīre to mutter]
(Collins English Dictionary – Complete and Unabridged © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003)