Accorsaf.Italianaccorsa from Latinaccursia 'aided, helped'.
The hypocoristic Corsa was more common than the full form.
Cite as: S.L. Uckelman. "Accorsa". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2021, no. 1. http://dmnes.org/2021/1/name/Accorsa.