τιτρώσκω Root ΤΡΩ, whence the tenses are formed
1.to wound, Hom.:—Pass., τετρῶσθαι τὸν μηρόν to have a wound in the thigh, Hdt.: —c. acc. cogn., τιτρώσκειν φόνον to inflict a death wound, Eur.
2.generally, to damage, cripple, of ships, Hdt., Thuc.
3.metaph., of wine, to do one a mischief, Eur., Xen.