Weaken

Webster's Dictionary

(1): ( v. i.) To become weak or weaker; to lose strength, spirit, or determination; to become less positive or resolute; as, the patient weakened; the witness weakened on cross-examination.

(2): ( v. t.) To make weak; to lessen the strength of; to deprive of strength; to debilitate; to enfeeble; to enervate; as, to weaken the body or the mind; to weaken the hands of a magistrate; to weaken the force of an objection or an argument.

(3): ( v. t.) To reduce in quality, strength, or spirit; as, to weaken tea; to weaken any solution or decoction.

King James Dictionary

Weaken,

1. To lessen the strength of, or to deprive of strength to debilitate to enfeeble as, to weaken the body to weaken the mind to weaken the hands of the magistrate to weaken the force of an objection or an argument. 2. To reduce in strength or spirit as, to weaken tea to weaken any solution or decoction.