ἀγγείδιον
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 ἀγγεῖον. Thphr. HP9.6.4, HeroSpir.1.6, Damocr. ap. Gal. 13.41 (prob. l.), BGU590.8 (ii A. D.). II gallbladder, Ruf. Anat.30.