Adella

Adella is an English feminine name that arose as an elaborated form of Adela, itself derived from the Old High German element adal, meaning noble. The suffix ella was commonly added in English-speaking countries during the nineteenth century to give names a more ornate, melodious quality. Adela, the simpler root form, was brought to England by the Normans and carried by a daughter of William the Conqueror. Related forms include Adela, Adelaide, Adeline, and Della.