Origin of vaticinate; from Classical Latin vaticinatus, past participle of vaticinari, to foretell, prophesy ; from vaticinus, prophetic ; from vates, seer, prophet: see vatic
verbva·tic·i·nat·ed, va·tic·i·nat·ing, va·tic·i·nates
Origin of vaticinateLatin vāticinārī, vāticināt-, from vātēs, seer; see vatic.
(third-person singular simple present vaticinates, present participle vaticinating, simple past and past participle vaticinated)
From Latin vÄticinÄtus, perfect passive participle of vÄticinor (“foretell, prophesy").