προσήλυτος
From LSJ
τὸ ἀνάλημμα καὶ τὴν ἐπ' αὐτοῦ κερκίδα → the retaining wall and the wedge of theatre seats supported by it
English (LSJ)
ον,
A one that has arrived at a place, stranger, sojourner, τῷ προσελθόντι προσηλύτῳ ib.Ex.12.49, al. II one who has come over to Judaism, convert, proselyte, Ph.2.219, Ev.Matt.23.15, Act.Ap. 2.10.