Prognosticate rhymes with:
domesticate, sophisticate, authenticate, domesticate, sophisticate, abdicate, aguacate, allocate, aluminosilicate, authenticate, communicate, complicate, dedicate, deprecate, domesticate, educate, equivocate, eradicate, excommunicate, explicate, extricate, fabricate, indicate, intoxicate, misallocate, miscommunicate, pontificate, predicate, reciprocate, rededicate, reeducate, replicate, sophisticate, suffocate, unallocate, uncomplicate