ἔχει

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

Sophocles, Antigone, 175-7

French (Bailly abrégé)

dat. de ἔχις;
3ᵉ sg. prés. de ἔχω;
3ᵉ sg. impf. de χέω.

Russian (Dvoretsky)

ἔχει:
I dat. к ἔχις.
II 3 л. sing. praes. к ἔχω.
III 3 л. sing. impf. к χέω.