The name Adelia is a girl's name of German origin meaning "noble, nobility". Adelia and is often added to lists like Old Lady Names and discussed in our forums with posts like "Make suggestions based on previous person's signature".
From the experts:
The super-success of Adele, both the singer and the name, has brought attention to all her cousins--Adela, Adeline, Adelina--and the lovely Adelia. An undiscovered gem just waiting to be discovered.
Some pluses: Adelia is the name of a flowering plant, and of an opera by Donizetti that premiered in 1841.