Dictionary of Medieval Names
from European Sources

Allegrezza f. Italian allegrezza, from Latin *alacritia 'happiness, joyfulness, mirth; briskness, activity'.

Italy
Latin
1527 Allegrezza (nom) Rome1527 p. 87
Cite as: S.L. Uckelman. "Allegrezza". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Allegrezza.