ad·stip·u·late \adˈstipyəˌlāt\intransitive verb (-ed/-ing/-s) Etymology: Latin adstipulatus, past participle of adstipulari, from ad- + stipulari to stipulate — more at stipulate : to act as an adstipulator • ad·stip·u·la·tion\(ˌ) ̷ ̷ˌ ̷ ̷ ̷ ̷ˈlāshən\noun-s