TBESG:κολυμβάωto swimG:V κολυμβάω, -ῶ [in AI.: Isa.25:11 * ;] to dive, plunge into the sea: Act.27:43 (cf. ἐκ-κολνμβάω).† (AS)
κολυμβάω kolumbaō kol-oom-bah'-o From κολυμβος kolumbos (a diver); to plunge into waterKJV Usage: swim.
ἐκκολυμβάω ekkolumbaō ek-kol-oom-bah'-o From G1537 and G2860; to escape by swimmingKJV Usage: swim out.
κολυμβήθρα kolumbēthra kol-oom-bay'-thrah From G2860; a diving place, that is, pond for bathing (or swimming)KJV Usage: pool.