also tranquillize verb (-ized; also -lized; -izing; also -lizing) Date: 1623 transitive verb to make tranquil or calm ; pacify , intransitive verb to become tranquil ; relax 1, to make one tranquil
TRANQUILIZE
Meaning of TRANQUILIZE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012