Autbert m. Old High German ōt, Old Saxon ōd 'wealth, riches' or Gothic audags 'happy' + Old High German beraht, Old Saxon berht 'bright' from Proto-Germanic *berhtaz.
Aubert can be a form of this name or of Albert; in many cases it is impossible to tell which is the root. Similarly, Autbert can also be a form of Altbert.