exequatur Syllabification: (ex·e·qua·tur)Pronunciation: /ˌeksəˈkwātər/Definition of exequatur noun an official recognition by a government of a consul, agent, or other representative of a foreign state, authorizing them to exercise the duties of office. Origin: early 17th century: Latin, literally 'let him or her perform'exequatur in other Oxford dictionaries Definition of exequatur in the British & World English dictionary