refuerzo
/reˈfweɾθo/ · B1 · noun · m
support
💪🧱 re + fuerza (force) = adding force again, like English reinforce
Refuerzo comes from reforzar: re- (again) + forzar, from fuerza (strength, force). English reinforce comes from the same Latin fortis (strong), so refuerzo means extra strength added to something.