ˈwiseˌacreryn./-ərɪ/ something characteristic of a wiseacre; pretension to or affectation of wisdom, or a remark exhibiting this.Apparently an isolated use.
ΘΚΠ
the mind > mental capacity > understanding > wisdom, sagacity > wise man, sage > pretender to wisdom, wiseacre > [noun] > affected wisdom > instance of
wiseacreism1860
wiseacrery1917
1917 G. SaintsburyHist. Fr. Novel I. 371 Interrupting his vizier and the other tale-tellers with wiseacreries.