Strong's #3065: Loukas (pronounced loo-kas')
contracted from Latin Lucanus; Lucas, a Christian:--Lucas, Luke.
Thayer's Greek Lexicon:
Luke or Lucus = "light-giving"
1) a Gentile Christian, the companion of Paul in preaching the gospel and on his many journeys; he was a physician and author of the book of Luke and Acts in the NT
Part of Speech: noun proper masculine
Relation: contracted from Latin Lucanus
This word is used 3 times:
Colossians 4:14: " Luke, the beloved physician, and Demas, greet you."
2 Timothy 4:11: "Only Luke is with me. Take Mark, and bring"
Philemon 1:24: "Mark, Aristarchus, Demas, Luke, my fellow laborers."