ἀποπάτησις
From LSJ
τίς ἐς σὸν κρᾶτ' ἐπύκτευσεν → who hit you with the fist on the head, who has been pummeling your head
English (LSJ)
εως, ἡ, A going to stool, Gal.15.607.
Greek (Liddell-Scott)
ἀποπάτησις: -εως, τὸ ἀποπατεῖν, ἡ κένωσις τῆς κοιλίας, Γαλην. τ. 11, σ. 70.
Spanish (DGE)
-εως, ἡ evacuación Gal.8.405, cf. 15.607.