Strong's #2860: kolumbao (pronounced kol-oom-bah'-o)
from kolumbos (a diver); to plunge into water:--swim.
Thayer's Greek Lexicon:
́
kolumbaō
1) to dive, to swim
Part of Speech: verb
Relation: from kolumbos (a diver)
Usage:
This word is used 1 times:
Acts 27:43: "and commanded that they which could swim should cast themselves first into the sea, and get to"