bridle, check, curb -- (the act of restraining power or action or limiting excess; "his common sense is a bridle to his quick temper")
Overview of verb curb
The verb curb has 4 senses
control, hold in, hold, contain, check, curb, moderate -- (lessen the intensity of; temper; hold in restraint; hold or keep within limits; "moderate your alcohol intake"; "hold your tongue"; "hold your temper"; "control your anger")
suppress, stamp down, inhibit, subdue, conquer, curb -- (to put down by force or authority; "suppress a nascent uprising"; "stamp down on littering"; "conquer one's desires")