weaken

To make or become weak or weaker.

To become weak or weaker.

To make weak or weaker; lesson or reduce the strength, power, ability, influence, or quality of.

To become weak or weaker; to lose strength, spirit, or determination; to become less positive or resolute.

To make weak; to lessen the strength of; to deprive of strength; to debilitate; to enfeeble; to enervate.