μελαγχολάω
From LSJ
Οὕτως ἔδειξέν μοι κύριος καὶ ἰδοὺ ἐπιγονὴ ἀκρίδων ἐρχομένη ἑωθινή, καὶ ἰδοὺ βροῦχος εἷς Γωγ ὁ βασιλεύς (Amos 7:1) → Thus the Lord showed me and look, early-morning offspring of locusts coming, and look, one locust-larva: Gog the king.
English (LSJ)
A to be atrabilious, melancholy-mad, Ar. Av.14,Pl.12,366,903, Pl.Phdr.268e, D.48.56, Alex.211, Men.Sam. 218, Gal.1.500, etc.