Strong’s Greek
G2280 — Thaddaios
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
Θαδδαῖος
Thaddaios — pronounced thad-dah'-yos
of uncertain origin; Thaddaeus, one of the Apostles:--Thaddaeus.
0 occurrences in the KJV.