descartar
/deskaɾˈtaɾ/ · B1 · verb
to rule out, to discard, to discount, to dismiss, to reject
🃏🗑️ des + carta = un-card: throw away a card from your hand
It comes from card games: des- (away) + carta (card), so to drop a card you don't want. English discard has the same roots, dis- + card. In Spanish it also means ruling something out: descartar una idea, descartar una opción.