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 2017, no. 1. http://dmnes.org/2017/1/name/Maitelm.