τύμβειος
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)
α, ον,
A sepulchral, κρηπίς Lyc.882; later written τύμβιος (q.v.).
Greek (Liddell-Scott)
τύμβειος: -α, -ον, ἡμαρτημ. γραφ. ἀντὶ τύμβιος, ὃ ἴδε.