sing out, sing one's last song
Ancient Greek word, found 12 times in the texts on Socratos.
Herodotus, Histories 4.146.4: αἳ δὲ ἐπείτε ἐσῆλθον, ποιέουσι τοιάδε· πᾶσαν τὴν εἶχον ἐσθῆτα παραδοῦσαι τοῖσι ἀνδράσι αὐταὶ τὴν τῶν ἀνδρῶν ἔλαβον, οἱ δὲ Μινύαι ἐνδύντες τὴν γυναικηίην ἐσθῆτα ἅτε γυναῖκες ἐξήισαν ἔξω, ἐκφυγόντες δὲ τρόπῳ τοιούτῳ ἵζοντο αὖτις ἐς τὸ Τηΰγετον.
Euripides, The Trojan Women 472: πρῶτον μὲν οὖν μοι τἀγάθʼ ἐξᾷσαι φίλον·
Plato, Phaedo 85: … διὰ τὸ αὑτῶν δέος τοῦ θανάτου καὶ τῶν κύκνων καταψεύδονται, καί φασιν αὐτοὺς θρηνοῦντας τὸν θάνατον ὑπὸ λύπης ἐξᾴδειν, καὶ οὐ λογίζονται ὅτι οὐδὲν ὄρνεον ᾄδει ὅταν πεινῇ ἢ ῥιγῷ ἤ τινα ἄλλην λύπην λυπῆται, οὐδὲ αὐτὴ ἥ τε ἀηδὼν κ …