φυλακιστής
From LSJ
Τούτῳ τῷ λόγῳ χρήσαιτο ἄν τις ἐπ' ἐκείνων τῶν ἀνθρώπων οἳ παραδόξως ἀλαζονεύονται, μηδὲ τὰ κοινὰ τοῖς ἀνθρώποις ἐπιτελεῖν δυνάμενοι → One would use this fable for those who give themselves unreasonable airs, but can't handle everyday life (Aesop 40)
Greek (Liddell-Scott)
φῠλακιστής: -οῦ, ὁ, Λατ. phylacistes ἐν Plaut Aul. 3. 5, 44, δεσμοφύλαξ, ἐπίθ. αὐστηροῦ δανειστοῦ. 2) = ξυλοπέδη Ἰω. Λυδ. 158.