WEAKEN, verb transitive 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.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI