τίς ἐς σὸν κρᾶτ' ἐπύκτευσεν → who hit you with the fist on the head, who has been pummeling your head
ĕgens: entis, Part. and P. a., from egeo.
ĕgēns,⁹ tis, p.-adj. de egeo, qui manque, dénué, privé de : Cic. Fam. 6, 22, 1