melancholia[mel′ən kō′lē ə]
Origin of melancholiaModern Latin ; from LL: see melancholy
Origin of melancholiaLate Latin, melancholy; see melancholy.
(countable and uncountable, plural melancholias)
From Late Latin melancholia, which was in turn borrowed from the Ancient Greek medical term μελαγχολία (melankholia, “blackness of the bile”).