Dictionary of Medieval Names
from European Sources

Expert m. Latin expertus (n.) 'expert', (adj.) 'well-proven, tested, shown to be true'.

Italy
Latin
1464 Expertus (nom) CUP-III-I CCXXXI
Cite as: S.L. Uckelman. "Expert". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Expert.