laetificate in English dictionary laetificate Meanings and definitions of "laetificate" verb (rare, formal, transitive, intransitive) To make, or become, happy. verb (rare, formal, transitive) To enrich; to fertilize. more Grammar and declension of laetificate laetificate (third-person singular simple present laetificates, present participle laetificating, simple past and past participle laetificated) more Sample sentences with "laetificate" Declension Stem Try again Authors