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Dictionary of Medieval Names
from European Sources

Maitelm m. Old High German, Old Saxon maht 'might' + Old High German, Old Saxon helm 'helmet'.

France
Latin
c823 Maitelmus (nom) irminon-vol2 112, Palatiolum
Cite as: S.L. Uckelman. "Maitelm". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 1. http://dmnes.org/2016/1/name/Maitelm.