† perˈvigilate,v.Obs.rare—0. [f.ppl. stem of L. pervigilāre to remain awake, watch all night, f. per- 1 + vigilāre to watch.] 1623Cockeram, Peruigilate, to watch. So † pervigiˈlationObs.[L. pervigilātio], a watching through the night, keeping of vigil. 1623Cockeram Pervigilation, a watching.1721Bailey.