Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pernōtesco, tŭi, 3, v. inch. n., to become everywhere or generally known (post-Aug.).
Impers. with acc. and inf., Tac. A. 1, 23: ubi incolumem esse pernotuit, id. ib. 14, 8; 13, 25: nova culpa, Quint. Decl. 3, 1.