#2280 Θαδδαῖος Thaddaios {thad-dah'-yos}

 of uncertain origin; TDNT - n/a; n pr m

—Greek Word Study (Transliteration-Pronunciation Etymology & Grammar)

 Thaddaeus = "large hearted, courageous"
 1) one of the twelve apostles. From a comparison with the catalogue of
    apostles in Lk 6:16, and Acts 1:13, is seems that Judas, Lebbaeus and
    Thaddaeus were the same person, and the writer of the book of Jude.

—Thayer's (New Testament Greek-English Lexicon)

—Strong's (Greek Dictionary of the New Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - Thaddaeus 2; 2

—Exhaustive Concordance (KJV Translation Frequency & Location)