† inˈcern,v.Obs.rare—0. [ad. L. incern-ĕre, f.in- (in-2) + cernĕre to sift.] To sift (a matter); to examine closely. 1656Blount Glossogr., Incerning, sifting, trying by sifting, looking narrowly into. Scotch Papers.1658Phillips, Incern, to sift, to examine strictly.