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Dictionary of Medieval Names
from European Sources

Olaf m. Proto-Norse *anu- 'ancestor' + *-laibaʀ 'remainder'.

The name of a 9th C king of Sweden, a 9th C king of Dublin, a 10th C king of Sweden, 10th C king of Norway, two 10th C kings of Dublin, a 10th C king of the Scots, a 10th C king of Limerick, a 10th C king of Dublin and Northumbria, an 11th C king of Norway and saint, another 11th C king of Norway, a 12th C king of Norway, a 12th C king of the Isles, a 12th C Danish anti-king, a 13th C king of Mann, and a 14th C king of Norway and Denmark.

England
Latin
1300 Aule (nom) ProcSuf-vol3 p. 231
Estonia
Middle Low German
1387 Olaue BbRT p. 339
1592 Olly Tiik1977 p. 285
Finland
Early Modern Swedish
1555 Oleff Audén1980 p. 165
Latvia
Middle Low German
1523 Olloff Arbusow p. 99, Olof ibid. p 98
Sweden
Latin
1383 Olauus (nom) SRA-vol2 no. 1909, Olawus (nom) ibid. no. 1925
Middle Norwegian
1383 Olafs (gen) SRA-vol2 no. 1915, Olafuer ibid. no. 1915
Old Swedish
1383 Olaf SRA-vol2 no. 1900, Olaff ibid. no. 1926, Olaffwer ibid. no. 1933, Olafuir ibid. no. 1911, Olauer ibid. no. 1922, Olauers (gen) ibid. no. 1922, Olauir ibid. no. 1940, Olawer ibid. no. 1934
Cite as: R. Le Get, S.L. Uckelman. "Olaf". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 2. http://dmnes.org/2015/2/name/Olaf.