Etymology in the sources
Source-reportedDu grec ancien Θαδδαῖος, Thaddaîos.
Sources for this account (3)
- French Wiktionary: ФаддейCC-BY-SA-4.0 · retrieved 2026-10-14
- Wikidata Q65258077CC0-1.0 · retrieved 2026-10-15
- Polish Wiktionary: ФаддейCC-BY-SA-4.0 · retrieved 2026-10-14

