ὑπουδαῖος
From LSJ
αὐτάρκης ἔσῃ, ἂν μάθῃς τί τὸ καλὸν κἀγαθόν ἐστι → you will be contented with your lot if you learn what the honourable and good is
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.