σμιλίον
From LSJ
Ἀμήχανον δὲ παντὸς ἀνδρὸς ἐκμαθεῖν ψυχήν τε καὶ φρόνημα καὶ γνώμην πρὶν ἂν ἀρχαῖς τε καὶ νόμοισιν ἐντριβὴς φανῇ → It is impossible to know the spirit, thought, and mind of any man before he be versed in sovereignty and the laws
English (LSJ)
τό, Dim. of σμίλη, ἰατρικὸν σ.
A scalpel, Plu. 2.60a, cf. S.E. M.9.207, Dsc.Eup.1.44; of a drug producing the same effect, Paul. Aeg.3.23.13, 7.17.12; of an eye-salve, written zmilion, Cels.6.6.18. 2 shoemaker's knife, Luc.Gall.26; penknife, written σμηλίον, POxy.326 (i A.D.).