Etymology in the sources
Source-reportedBlend of Unnur + Halldór, two Icelandic names, with the first bearer of this name, Unndór Jónsson (1910-1973) named after two people bearing these names. All later use stems from him.
Sources for this account (5)
- Wiktionary: UnndórCC-BY-SA-4.0 · retrieved 2026-10-15
- Greek Wiktionary: UnndórCC-BY-SA-4.0 · retrieved 2026-10-15
- French Wiktionary: UnndórCC-BY-SA-4.0 · retrieved 2026-10-14
- Polish Wiktionary: UnndórCC-BY-SA-4.0 · retrieved 2026-10-14
- Turkish Wiktionary: UnndórCC-BY-SA-4.0 · retrieved 2026-10-14

