Dictionary of Medieval Names
from European Sources

Harda f. A pet form of any of various names beginning with Old Saxon hard, Old High German hart 'strong, hard'.

France
Latin
c823 Ardinga (nom) irminon-vol2 5, Palatiolum
Cite as: S.L. Uckelman. "Harda". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Harda.