condescend
verb
°To come down from one's superior position; to deign (to do something).
"Spain's mighty monarch, In gracious clemency, does condescend, / On these conditions, to become your friend. --Dryden."
°To treat someone as an inferior, to talk down to someone.
"Don’t condescend to me! I know this as well as you, if not better."
synonyms: yield, stoop, descend, deign more» , vouchsafe, patronize