The name Belli originated from a family in Scotland. They lived in Bellie, Morayshire. The family who was originally given this name owned many houses, manors and estates, but it is said that the name was given to people who had the occupational name of bailie. Historic figures lack the name; however, the term "Casus Belli" is a Latin expression meaning occasion of war.
The name Fiona, on the other hand, represents far more positive and lively qualities, such as being inspirational and idealistic. Fiona, as we know, is a highly intelligent young lass, who attends college. She may or may not be majoring in something in particular, but there’s no doubt she possesses some very artistic skills. Her speech reveals a vast vocabulary, thus leading to the possibility she enjoys writing and literature.
Being creative also brings to light originality and beauty, both of which Fiona certainly is. Those given the name Fiona have a very affectionate and expressive nature, which we see quite clearly from her interactions with Hewie.
Some Info Provided By: Kabalarian Philosophy