Probably from the same as yayin; effervescing (i.e. Hot and active); Javan, the name of a son of Joktan, and of the race (Ionians, i.e. Greeks) descended from him, with their territory; also of a place in Arabia -- Javan.
KJV: And I will set a sign among them, and I will send those that escape of them unto the nations, to Tarshish, Pul, and Lud, that draw the bow, to Tubal, and Javan, to the isles afar off, that have not heard my fame, neither have seen my glory; and they shall declare my glory among the Gentiles.
NASB: "I will set a sign among them and will send survivors from them to the nations: Tarshish, Put, Lud, Meshech, Rosh, Tubal and Javan, to the distant coastlands that have neither heard My fame nor seen My glory. And they will declare My glory among the nations.