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Dictionary of Medieval Names
from European Sources

Otmund m. Old High German ōt, Old Saxon ōd 'wealth, riches' + Old Saxon mund, Old High German munt 'hand, protection'.

France
Latin
c823 Otmundus (nom) irminon-vol2 49
Cite as: S.L. Uckelman. "Otmund". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 2. http://dmnes.org/2015/2/name/Otmund.