ἀμφιβατήρ
From LSJ
ἀμήχανον δὲ παντὸς ἀνδρὸς ἐκμαθεῖν ψυχήν τε καὶ φρόνημα καὶ γνώμην, πρὶν ἂν ἀρχαῖς τε καὶ νόμοισιν ἐντριβὴς φανῇ → hard it is to learn the mind of any mortal or the heart, 'till he be tried in chief authority | it is impossible to know fully any man's character, will, or judgment, until he has been proved by the test of rule and law-giving
German (Pape)
[Seite 136] ὁ, Vertheidiger, Synes. hymn.
Greek (Liddell-Scott)
ἀμφιβατήρ: ῆρος, ὁ, ὑπερασπιστής, φύλαξ, ἐπὶ ἀγγέλων, Συνέσ. σ. 324.
Spanish (DGE)
-ῆρος, ὁ
defensor, guardián κόσμου μοίρας ἐφέπουσι σοφοὶ ἀμφιβατῆρες Synes.Hymn.1.286.