Dictionary of Medieval Names
from European Sources

Seaborn m. Old English , Old Icelandic sær 'sea, lake' + Old English bera, *beorn, Old Icelandic bjǫrn 'bear'.

England
Latin
1189 Sebarn (nom) GASurv p. 174; 1222 Sabarnus (nom) StPaulDom p. 90, sabarni (gen) ibid. p. 78, saberni (gen) ibid. p. 77
Finland
Early Modern Swedish
1548 Sebijörs (gen) Audén1980 p. 167
Ireland
Latin
fin12thC Seaborn (gen) MunDocIr III, p. 10
Cite as: R. Le Get, S.L. Uckelman. "Seaborn". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2019, no. 1. http://dmnes.org/2019/1/name/Seaborn.