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Dictionary of Medieval Names
from European Sources

Machelm m. A truncated form of Old High German megin, magan 'strength, might, power' + Old High German, Old Saxon helm 'helmet'.

Austria
Latin
776 Machelmo (abl) FRA-XXXL 4, Machelmus (nom) ibid. 4
Cite as: S.L. Uckelman. "Machelm". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2020, no. 1. http://dmnes.org/2020/1/name/Machelm.