Webster's 1913 Dictionary

Definition: \Phthi"sis\, n. [L., fr. Gr. ?, fr. ? to pass or waste
away: cf. F. phthisie.] (Med.)
A wasting or consumption of the tissues. The term was
formerly applied to many wasting diseases, but is now usually
restricted to pulmonary phthisis, or consumption. See
{Consumption}.

{Fibroid phthisis}. See under {Fibroid}.

I think Webster 1913 may have been behind the times in
saying "consumption" for tuberculosis, but I don't know
the date of the latter term.