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Dictionary of Medieval Names
from European Sources
☙

Iarncum m. Old Breton (ho)iarn 'iron' + Old Breton cum 'gentle, beloved'.

France
Latin
● 833 Iarncum (nom) CartRed V
Cite as: S.L. Uckelman. "Iarncum". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Iarncum.