ὑπεξούσιος
From LSJ
Κύριε, βοήθησον τὸν δοῦλον σου Νῖλον κτλ. → Lord, help your slave Nilos ... (mosaic inscription from 4th-cent. church in the Negev)
English (LSJ)
α, ον, but ος, ον POxy. (v. infr.),
A subject to the power of another, opp. αὐτεξούσιος, Cod.Just.6.4.4.25, Sch.E.Andr.411,628; θυγάτηρ POxy.129.2 (vi A. D.), cf. Mich.in EN45.33; = filius familias, Gloss.
German (Pape)
[Seite 1188] der Gewalt eines Andern unterworfen, unterthänig, Sp.