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; 1179 Aja (abl) clairvaux-12thc 181
Cite as: S.L. Uckelman. "Aga". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Aga.