† ˈsinapize,v.Obs.rare—1. [ad. F. sinapizer (Rabelais), ad. L. sināpīzāre, Gr. σινᾱπίζειν, f. σίνᾱπι mustard.] trans. To sprinkle after the manner of mustard powder. 1653Urquhart Rabelais ii. xxx, He..took his head and into it synapised some powder of diamerdis.