Κύριε, βοήθησον τὸν δοῦλον σου Νῖλον κτλ. → Lord, help your slave Nilos ... (mosaic inscription from 4th-cent. church in the Negev)
P. and V. λάθρα, λαθραίως (rare P.), P. κρύφα, Ar. and P. κρύβδην, V. κρυφῆ; (also Xen.), κρυφαίως, κρύβδα.