Dictionary of Medieval Names
from European Sources

Gustav m. Tribal name Gaut 'Geat, Goth' + Old Icelandic stafr 'staff'.

The name of a a 16th C king of Sweden.

Sweden
Latin
1350 Godstauus (nom) SDHK no. 6020, Gyøstauus (nom) ibid. no. 6002, Gødzstauo (dat) ibid. no. 6010, Gøstaff (nom) ibid. no. 6046, Gøstaui (gen) ibid. no. 6015
Old Swedish
1383 Gödzstafs (gen) SRA-vol2 no. 1918
Cite as: S.L. Uckelman. "Gustav". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Gustav.