Dictionary of Medieval Names
from European Sources

Gismunda f. Proto-Germanic *gaisa, *gaiza 'arrow' + Old Saxon mund, Old High German munt 'hand, protection'.

Italy
Latin
1527 Gismunda (nom) Rome1527 p. 89
Cite as: S.L. Uckelman. "Gismunda". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Gismunda.