Lexical Definition

‎κολυμβάω‎ kolymbáō (kol-oom-bah'-o) to swim ^G:V
from (a diver)

swim.

• to plunge into water

Abbott-Smith

** κολυμβάω, -ῶ, [in Al.: Is 25:11*;]
to dive, plunge into the sea: Ac 27:43 (cf. ἐκ-κολνμβάω).†

Abbott-Smith References

Liddell-Scott-Jones

κολυμβάω-άω

(Doric dialect -φάω accusative to [Refs], dive, plunge headlong, εἰς τὸν Τάρταρον [κολυμβάωήθραν μύρου 2nd c.AD: Alexander Rhetor 300. ">Refs 5th c.BC+]

__2 swim, τοὺς δυναμένους κολυμβάωᾶν [NT]

_{LSJ Scripture Refs: Acts.27.43}