κτημάτιον
From LSJ
Ὁ δὲ μὴ δυνάμενος κοινωνεῖν ἢ μηδὲν δεόμενος δι' αὐτάρκειαν οὐθὲν μέρος πόλεως, ὥστε ἢ θηρίον ἢ θεός → Whoever is incapable of associating, or has no need to because of self-sufficiency, is no part of a state; so he is either a beast or a god
English (LSJ)
τό, Dim. of κτῆμα, Alciphr. 1.36, PTeb.616 (ii A.D.), PFay.133 (iv A.D.).
German (Pape)
[Seite 1519] τό, dim. von κτῆμα, ein kleines Gut, Alciphr. 1, 36.