κάθεξις
From LSJ
ὑμῖν ἔξεστι εὐδαίμοσι γενέσθαι → to you it is permitted to be joyful, it is permitted to be happy, it is permitted to be fortunate, vobis licet esse beatis
English (LSJ)
εως, ἡ, (κατέχω)
A holding, retention, τῆς ἀρχῆς Th.3.47; ἐν μνήμῃ καὶ καθέξει Plu.2.968c; possession, Plot.6.1.23. 2 holding in, restraining, τοῦ πνεύματος Arist.Somn.Vig.456a16; [θυμοῦ] Id.EE 1223b20. 3 retentive power, of the bladder, Aret.CA1.4.
German (Pape)
[Seite 1283] ἡ, das Zurückhalten, Behaupten; τῆς ἀρχῆς Thuc. 3, 47; τοῦ πνεύματος, das Anhalten des Athems, Arist. de somn. 2 E.; τῶν ἐπιθυμιῶν Plut. Num. 3.