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Dictionary of Medieval Names
from European Sources

Aga f. Proto-Germanic *agio 'blade', or a pet form of any of various names with this as a prototheme.

France
Latin
657 Aga (nom) DCEL-2 CCCXXVIII; 993x1032 Agia (nom) St-Bernard-Romans no. 82
Cite as: S.L. Uckelman. "Aga". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 3. http://dmnes.org/2016/3/name/Aga.