Thadeus is a ♂ boy’s name.
Thadeus is a form of the biblical name Thaddeus, which is of Greek and Aramaic origin.
Thadeus means “heart” (from Aramaic “tadda”). In Greek, Thadeus derived from Θαδδαιος/Thaddaios, which is of unknown origin.
The name Thadeus is ranked #1909 overall.
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