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Dictionary of Medieval Names
from European Sources

Achere m. Proto-Germanic *agio 'blade' + Old High German heri 'host, army'.

France
Middle French
1388 Achere thierry
Cite as: J. Uckelman, S.L. Uckelman. "Achere". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 2. http://dmnes.org/2015/2/name/Achere.