ἄστριον
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)
τό, Dim. of ἀστήρ, an
A architectural ornament, IG4.1495.61. II = ἀστερίτης λίθος, Plin.HN37.132, Isid.Etym.16.13.7. III = κορωνόπους, Ps.-Dsc.2.130 (nisi leg. ἀστέριον).