fabulosity
noun
fab·u·los·i·ty ˌfa-byə-ˈlä-sə-tē 
informal + often humorous
: fabulous quality, state, or nature : fabulousness
In her pursuit of her true purpose, Alice encounters a variety of splendiferous creatures who encourage her to get in touch with her inner fabulosity. 
The Daily Home (Talladega, Alabama)
The Daily Home (Talladega, Alabama)I appreciate Erika's dedication to the character of Erika Jayne. She started out being on the show with a certain level of fashion fabulosity and now she's stuck delivering it year after year. Brian Moylan
Brian Moylan
Word History
Etymology
borrowed from French & Latin; French fabulosité, going back to Middle French, borrowed from Latin fābulōsitāt-, fābulōsitās, from fābulōsus "celebrated in legend, resembling an invented story, mythical" — more at fabulous
Note: Late 20th- and 21st-century use may represent a direct derivation from fabulous, after curious : curiosity, generous : generosity, and like pairs.
First Known Use
1603, in the meaning defined above