rechazar
/ret͡ʃaˈθaɾ/ · A2 · verb
to reject, to turn down, to turn away, to refuse, to dismiss, to shun, to decline
🚫 re- (back) + chazar (to bat away, as in chase) = to bat back, reject
Chazar is a ball-game term for stopping and knocking the ball back, from Old French chacier, the same root as English chase. Add re- (back) and you get driving something back: turning down an offer, declining a card, repelling an attack.