Melana is an 8 year old interviewed by Scoops in a Favorite Word segment, during which she said that her favorite word is "generosity".
Generosity Melana is thus a natural nickname for her, to distinguish her from Song Melana.
Interview for WYFW[]
My favorite word is "generosity" because it makes me think of being kind and giving. And when you're generous with your things and your time, it makes people happy and that's what I like.