ἀποσχάζω
From LSJ
τὸ δὲ ποιεῖν ἄνευ νοῦ ἃ δοκεῖ καὶ σὺ ὁμολογεῖς κακὸν εἶναι: ἢ οὔ → but doing what one thinks fit without intelligence is—as you yourself admit, do you not?—an evil
English (LSJ)
stronger form of σχάζω, ἀ. φλέβα
A open a vein, Crates Com.41, Arist.HA514b2:—Pass., to be lanced, of a γαργαρεών, Hp. Prog.23. 2 scarify, Antyll. ap. Orib.7.18.2. II let go, σχαστηρίαν HeroBel.79.3:—Med., let go a stage machine, Id.Aut.20.4.
