▪ I.† gresell,v.Obs.rare—1. [a. OF.gresiller, greziller ‘to wrigle..; to curle, twirle, frizle haire’ (Cotgr.)] intr. Of hair: To stand on end. 1490Caxton Eneydos xvi. 64 His heeres byganne to gresell [Fr.orig.hericer], & dresse vpward. ▪ II.gresell obs. form of grizzle v.