DEFICIENCE, DEFICIENCY, noun [Latin To fail to do.] 1. A failing; a falling short; imperfection; as a deficiency in moral duties. 2. Want; defect; something less than is necessary; as a deficiency of means; a deficiency of revenue; a deficiency of blood.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI