μαργαριτάριν

From LSJ

Κύριε, βοήθησον τὸν δοῦλον σου Νῖλον κτλ. → Lord, help your slave Nilos ... (mosaic inscription from 4th-cent. church in the Negev)

Source

Greek (Liddell-Scott)

μαργαριτάριν: ἀντὶ μαργαριτάριον, τό, = μαργαρίτης, Θεοφάν. 351, 11.