TRANQUILIZE is validvalid

to sedate [v TRANQUILIZED, TRANQUILIZES, TRANQUILIZING] : TRANQUILIZER [n]

162,288 of 196,601 in NWL2023·also valid in CSW24

to make tranquil or calm, also TRANQUILISE, TRANQUILLISE, TRANQUILLIZE [v TRANQUILIZED, TRANQUILIZING, TRANQUILIZES]