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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 2016, no. 3. http://dmnes.org/2016/3/name/Gisa.