Word Study
atrabilarian
CIDE DICTIONARY
atrabilarian, a. [LL. atrabilarius, fr. L. atra bilis black bile: cf. F. atrabilaire, fr. atrabile.].
Affected with melancholy; atrabilious. Arbuthnot. [1913 Webster]
atrabilarian, n.
A person much given to melancholy; a hypochondriac. I. Disraeli. [1913 Webster]
For further exploring for "atrabilarian" in Webster Dictionary Online