Dictionary of Medieval Names
from European Sources

Ermenhilde f. Old High German ermen, Old Saxon irmin 'great, strong' or Old English eormen 'great, strong; whole' + Old English hild, Old High German hiltja 'battle'.

The name of a 7th C Anglo-Saxon saint.

Imelda is an Italian form.

France
Latin
c665 Emnehilde (gen) DCEL-2 Add. IV; c823 Ermehildis (nom) irminon-vol2 62, Ermenildis (nom) ibid. 28, Palatiolum; 1180 Ermenelda (nom) RotScaNor p. 28
Italy
Latin
1100 Imelda (nom) RCI-Cam1 625; 1265x1339 Ymelda (nom) BBC-Berg 10
Cite as: J. Uckelman, S.L. Uckelman. "Ermenhilde". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Ermenhilde.