Dictionary of Medieval Names
from European Sources

Guimar f. Old Saxon, Old English wig, Old High German wīc 'war, battle' + Old English mære, Old High German, Old Saxon māri from Proto-Germanic *mērijaz 'famous'.

Cf. Wigmar for the masculine form.

Spain
Latin
1490 Guimera (nom) carbonell-I p. 45
Spanish
1576 Guiomar Catalogo-5.2 3971
Cite as: S.L. Uckelman. "Guimar". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Guimar.