Dictionary of Medieval Names
from European Sources

Hainard m. Old French hagan lengthened from Old Saxon hago, Old Icelandic hagi 'pasture, yard, enclosed land' + Old Saxon hard, Old High German hart 'strong, hard'.

France
Latin
1101x1129 Hainardo (abl) CartStPC XXVIII
Cite as: S.L. Uckelman. "Hainard". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Hainard.