βαβύας
From LSJ
ἐν πιθήκοις ὄντα δεῖ εἶναι πίθηκον → in Rome we do as the Romans do | when in Rome, do as the Romans do | when in Rome, do as the Romans | when in Rome, do like the Romans do | when in Rome | being among monkeys one has to be a monkey
Greek (Liddell-Scott)
βαβύας: ὁ, πηλός, λάσπη, παρ' Ἡσυχ.· ὡσαύτως βαβύλας, Σουΐδ., κτλ.
Spanish (DGE)
ὁ fango Hsch.
Frisk Etymological English
Grammatical information: m.\/f.?
Meaning: βόρβορος, πηλός H; βαβύη χείμαρρος, οἱ δε πόλις [read πηλός?] H.; βακίας [read βαβύας?] βόρβορος, πηλός ὑπὸ Ταραντίνων EM 186,1
Origin: PG [a word of Pre-Greek origin]X [probably]
Etymology: V. Blumenthal Hesychst. 20 suggests Messapian origin (ending -uos). The meaning rather suggests a Pre-Greek word.