- Original: Θαδδαῖος - Transliteration: Thaddaios - Phonetic: thad-dah'-yos - Definition: Thaddaeus = large hearted, courageous 1. one of the twelve apostles. From a comparison with the catalogue of apostles in Luke 6:16, and Act 1:13, is seems that Judas, Lebbaeus and Thaddaeus were the same person, and the writer of the book of Jude. - Origin: of uncertain origin - TDNT entry: None - Part(s) of speech: Noun Masculine - Strong's: Of uncertain origin; Thaddaeus one of the Apostles: - Thaddus. Total KJV Occurrences: 2 • Thaddaeus, 2 Mat 10:3; Mar 3:18