βορβορυγμός
From LSJ
ξένους ξένιζε, καὶ σὺ γὰρ ξένος γ' ἔσῃ → be hospitable to guests; you too will be a guest
English (LSJ)
ὁ,
A intestinal rumbling, Hp.Prog.11; belching, Suid.
German (Pape)
[Seite 453] ὁ, das Knurren, Kullern im Bauche, Diosc.; Luc. Lexiph. 20.