εἰσβιάζομαι

A. force one's way into, εἰς τὰ πρῶτα γένη Plu. Num.I; πρός τινα D.S. 14.9; ἐς τὸν Βόσπορον D.C. 42.47.

2. force oneself in, ὁ μὲν γὰρ ὢν οὐκ ἀστὸς ἐσβιάζεται Ar. Av. 32; τῶν αὑτοὺς εἰσβιαζομένων.. ποιεῖσθαι who force [others] to adopt them into a family, D. 39.33, cf.CIG 2685(Iasos), OGI 736.6(Fayûm), PPetr. 3p.39 (iii B.C.), etc.