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Dictionary of Medieval Names
from European Sources

Ainard m. Old French agin lengthened from Proto-Germanic *agio 'blade' + Old Saxon hard, Old High German hart 'strong, hard'.

France
Latin
1029x1033 Ainardus (nom) CartStPC XII; 1239 Aynardi (gen) St-Bernard-Romans 382b
Cite as: S.L. Uckelman. "Ainard". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 3. http://dmnes.org/2016/3/name/Ainard.