esfuerzo
/esˈfweɾθo/ · A2 · noun · m
attempt
💪 es + fuerzo: from fuerza (force) — effort is force you put out
From esforzar, Latin ex- (out) + fortis (strong), the same root as English force and fort. The o of esforzar turns into ue under stress, giving esfuerzo. English effort is a cousin, from the same ex + fortis.