Dictionary of Medieval Names
from European Sources

Gisa f. Proto-Germanic *gaisa, *gaiza 'arrow'.

France
Latin
c823 Gisa (nom) irminon-vol2 3, Gaugiacum
Cite as: S.L. Uckelman. "Gisa". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Gisa.