κολύμβησις
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)
εως, ἡ, pearl- A fishery, Peripl.M.Rubr.35 (pl.), 58, Sch.Ptol.Geog.6.7.11.
German (Pape)
[Seite 1476] ἡ, das Untertauchen, Schwimmen, Sp.
Greek (Liddell-Scott)
κολύμβησις: -εως, ἡ, κολύμβημα, Ἀρρ. Περίπλ. 175, Πτολ.