† caˈcuminate,v.Obs.rare—0. [f. L. cacūminā-re to make pointed, f.cacūmen: see cacuminous.] ‘To make sharp or pyramidal’ (J.). 1656Blount Glossogr., Cacuminate, to make sharp or copped.1678Phillips, Cacuminate, to form into a sharp top like a pyramid.1721–90Bailey (as in Blount.)