ὑπουδαῖος
From LSJ
ξένος ὢν ἀκολούθει τοῖς ἐπιχωρίοις νόμοις → as a foreigner, follow the laws of that country | when in Rome, do as the Romans do
English (LSJ)
a (Ion. η), ον, (οὖδας)
A subterranean, Plu.2.266e, Opp. H.3.487.
German (Pape)
[Seite 1237] unter dem Erdboden, unterirdisch; Opp. Hal. 3, 487; Plut. qu. Rom. 11.
Greek (Liddell-Scott)
ὑπουδαῖος: α, (Ἰων. η), ον, (οὖδας) ὑποχθόνιος, τὸν δὲ Κρόνον ἡγοῦνται θεὸν ὑπουδαῖον Πλούτ. 2. 266Ε· τήν ποτε κούρην φησὶν ὑπουδαῖον ἔμμεναι Ὀππ. Ἁλ. 3. 487.