ῥαγίον
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
English (LSJ)
τό, Dim. of ῥάξ, EM 705.52 (Gaisf. ῥαγί). II a poisonous spider, Philum.Ven.15.1, Aët.13.20; cf. ῥώξ.
Greek (Liddell-Scott)
ῥᾱγίον: τό, ὑποκοριστ. τοῦ ῥάξ, «ῥὼξ ζῷον ἐστὶ μικρόν, ῥαγίῳ (ῥαγὶ Gaisf.) σταφυλῆς ὅμοιον» Ἐτυμολ. Μέγ. 705. 52. ΙΙ. εἶδος ἀράχνης δηλητηριώδους, κοινῶς «ῥῶγα», Ἀέτ.· ἴδε ἐν λέξει ῥώξ.