late 14c., "wasting of the body by disease; wasting disease" (replacing Old English yfeladl "the evil disease"), from Old French consumpcion, from Latin consumptionem (nominative consumptio) "a using up, wasting," noun of state from past participle stem of consumere (see consume). Meaning "the using up of material" is 1530s.
consumption con·sump·tion (kən-sŭmp'shən)
The act or process of using up something.
A progressive wasting of body tissue.
Pulmonary tuberculosis. No longer in technical use.