Dictionary of Medieval Names
from European Sources

Benegar m. Latin bene 'well; agreeably, favorably' + Old High German, Old Saxon gēr 'spear'.

France
Latin
c823 Benegarius (nom) irminon-vol2 36, Palatiolum
Cite as: S.L. Uckelman. "Benegar". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Benegar.