li·bate \ˈlībāt, ̷ ̷ˈ ̷ ̷\verb (-ed/-ing/-s) Etymology: Latin libatus, past participle of libare to pour as an offering transitive verb : to pour out a libation or make libation to intransitive verb 1.: to make libation 2.: to drink alcoholic drink < sat up with three libating guests who would not leave >