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Dictionary of Medieval Names
from European Sources

Helmwin m. Old High German, Old Saxon helm 'helmet' + Old High German wini 'friend'.

The Netherlands
Latin
714 Helmoinus (nom) OrkGZ no. 4
Cite as: A. Brown, S.L. Uckelman. "Helmwin". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2021, no. 1. http://dmnes.org/2021/1/name/Helmwin.