abusar
/abuˈsaɾ/ · B1 · verb
to abuse, to betray
🤥💔 abusar = ab (away from) + usar (use): using something past its proper use
From Latin abusus, ab- (away) + uti (to use). To abusar is to stray from proper use, so it covers misuse and abuse. Abusar de alguien means taking advantage of someone, which is where betray comes in.