Webster’s Revised Unabridged Dictionary · 1913
Atrabilarian
At′ra·bi·la′ri·an, At′ra·bi·la′ri·ous, a. [LL. atrabilarius, fr. L. atra bilis black bile: cf. F. atrabilaire, fr. atrabile.] Affected with melancholy; atrabilious. Arbuthnot.
At′ra·bi·la′ri·an, n. A person much given to melancholy; a hypochondriac. I. Disraeli.