κολυμβ-άω
(Doric dialect -φάω accusative to [[ “Etymologicum Magnum” 526.2)] Refs], dive, plunge headlong, εἰς τὸν Τάρταρον [[ 5th c.BC: Pherecrates Comicus 108.21; εἰς τὰ φρέατα 5th-6th c.BC: Plato Philosophus “Protagoras” 350a, compare “La.” 193c, 1st c.BC-1st c.AD: Strabo Geographus 17.1.44, etc.; εἰς κολυμβήθραν μύρου 2nd c.AD: Alexander Rhetor 300. ] Refs 5th c.BC+]
__2 swim, τοὺς δυναμένους κολυμβᾶν [[ NT.Act.27.43, compare “Hippiatrica” 26. ] NT]