bridle

(noun) headgear for a horse; includes a headstall and bit and reins to give the rider or driver control.

(noun) the act of restraining power or action or limiting excess. Synonyms: check, curb. Example: "His common sense is a bridle to his quick temper."

(verb) anger or take offense. Example: "She bridled at his suggestion to elope."

(verb) put a bridle on. Example: "Bridle horses."

(verb) respond to the reins, as of horses.