κλέπτης
From LSJ
Βοηθὸς ἴσθι τοῖς καλῶς εἰργασμένοις → Bonis inceptis addas auxilium tuum → Erweise dich als Helfer dem, was gut getan
English (LSJ)
ου, ὁ,
A thief, Il.3.11; τὸν πυρὸς κ. A.Pr.946; κλέπτα δύο Ar.V.928; opp. ἅρπαξ (a robber), Myrtil.4; λῃστὰς ἢ κλέπτας Pl.R.351c, cf.Ev.Jo.10.8; ὁ τοῦ κ. λόγος, a logical fallacy, Arist.SE180b18. 2 generally, cheat, knave, S.Aj.1135; κακῶν ἀλλοτρίων κ. D.45.59.
