The story
- Latin · derived fromgrātiōsitās
- Middle French · derived fromgracieuseté
- Middle English · inherited fromgraciousete
- English todaygraciosity
From Middle English graciousete, partly from Middle French gracieuseté, partly modelled on Latin grātiōsitās, and probably also partly equivalent to gracious + -osity.
Etymology from Wiktionary, CC BY-SA 4.0.