ζύμωσις
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 fermentation, Pl.Ti.66b, Plu.2.659b, Gal.16. 661; ἥπατος ζύμωσις a swelling of the liver, Hp.Epid.4.8.
German (Pape)
[Seite 1142] ἡ, das Säuern, in Gährung Bringen, Plat. Tim. 66 b; Geschwulst, bei Medic.