τῶν οἰκιῶν ὑμῶν ἐμπιπραμένων αὐτοὶ ᾄδετε → your homes are on fire and all you can do is sing
hypŏcausis: is, f., = ὑπόκαυσις>,I a furnace that heats from below, Vitr. 5, 10, 1 sqq.
