Old Icelandic hallr 'rock, stone' + Old Icelandic Þórr, the name of the god of thunder, deriving from Proto-Germanic *þunraz 'thunder'.
Found in Scandinavia, and in areas of Scandinavian influence such as the Danelaw. In Finland and Estonia from the 1500s, the variant form Hallor was used.
- Middle Low German
- ◑ 1592 Halli Tiik1977 p. 286,
Hallo ibid. p. 286
- Middle Icelandic
- ● 1504 Halldor (nom) DipIs-7 655,
Halldorz (gen) ibid. 655
- ● 1350 Haldorus (nom) SDHK no. 6054
Cite as: R. Le Get, S.L. Uckelman. "Haldor". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Haldor.