ὀνίς
From LSJ
Ῥᾷον βίον ζῇς, ἢν γυναῖκα μὴ τρέφῃς → Vivas facilius, coniugem si non alas → Dann lebst du leichter, wenn du keine Frau ernährst
English (LSJ)
ίδος, ἡ,
A ass's dung, Hp.Nat.Mul.82, Dsc.2.80, Gal.12.803 : also in pl., Ar.Pax4, Arist.HA552a17 ; ἡμιόνου ὀνίς Hp.Mul. 2.192 (elsewh. ἡμιονίς): but ὀνίδια (ὀνιαῖα Hsch.) is strangely expld. horse's dung by Hsch., Phot., Suid.