Ἀλλ' Ἀχέροντι νυμφεύσω → I will become the bride of Acheron
sub-tristis: e, adj.,I somewhat sad or sorrowful (ante- and post-class.): subtristis visus est mihi, Ter. And. 2, 6, 16; Hier. Ep. 107, 9.—Comp.: cera subtristior, Hier. Ep. 60, 1.