wiseacre Hear it!

wiseacre definition

wise·acre (wīz′ā′kər)

noun

a person who makes annoyingly conceited claims to knowledge

Etymology: altered by folk etym. < MDu wijssegger, altered (infl. by wijs, wise + zeggen, to say) < OHG wissago, altered (infl. by wis, wise + sago, speaker < sagen, to say) < wizzago, prophet < Gmc *witag-, knowing: for IE base see wise

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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