Dictionary of Medieval Names
from European Sources

Arcwin m. Proto-Germanic *argaz 'cowardly; unmanly; indecent, evil' + Old High German wini 'friend'.

France
Latin
c823 Arcoinus (nom) irminon-vol2 112, Palatiolum
Cite as: S.L. Uckelman. "Arcwin". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Arcwin.