Förstermann's reference lists Adalmod/Adalmuat/Adalmuot/Adalmout/Adalmut/Adelmod/Adelmot/Adelmuot/Almoth/Almout/Adaldmot (masc.) and Adalmoda/Adalmodis/Adalmudis (fem.)
The first element is adal "noble", as you said, and the second is muot "mind, spirit" (see
Helmut).