† ˈceremonize,v.Obs. [f. ceremony + -ize.] intr. To practise or observe ceremonies. 1633Ames Agst. Cerem. ii. 380 We must ceremonize [trans.ceremoniandum est] according to God's Word onely.1663Sparke Prim. Devot. (ed. 3) 542 Without staying to..ceremonize with his relations.