Dictionary of Medieval Names
from European Sources

Ailbert m. Proto-Germanic *agio 'blade' lengthened to Old French agil + Old High German beraht, Old Saxon berht 'bright' from Proto-Germanic *berhtaz.

Germany
Latin
822x875 Ailbertus (nom) TradCorb §86
Cite as: S.L. Uckelman. "Ailbert". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Ailbert.