syzygia
From LSJ
Κύριε, σῶσον τὸν δοῦλον σου κτλ. → Lord, save your slave ... (mosaic inscription from 4th cent. church in the Negev)
Latin > English (Lewis & Short)
sȳzygĭa: ae, f., = συζυγία (pure Lat. conjugatio),
I a joining together or conjunction, a syzygy, Tert. Praescr. 46.