wiseacre

[ wahyz-ey-ker ]
/ ˈwaɪzˌeɪ kər /

noun

a person who possesses or affects to possess great wisdom.

Origin of wiseacre

1585–95; < Middle Dutch wijssager prophet, translation of Middle High German wīssage, late Old High German wīssago, by popular etymology equivalent to wīs wise + sago sayer, from earlier wīzzago wise person; cognate with Old English wītega, akin to wit2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for wiseacre

British Dictionary definitions for wiseacre

wiseacre

/ (ˈwaɪzˌeɪkə) /

noun

a person who wishes to seem wise
a wise person: often used facetiously or contemptuously

Word Origin for wiseacre

C16: from Middle Dutch wijsseggher soothsayer; related to Old High German wīssaga, German Weissager. See wise 1, say
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