Dictionary of Medieval Names
from European Sources

Sica f. A short form of any of various names beginning with Old High German sigu 'victory' or possibly Latin sica 'dagger'.

Italy
Latin
996 Sica (nom) skinner
Cite as: J. Uckelman, S.L. Uckelman. "Sica". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Sica.