Meaning:
Its source is Aisha, an Arabic name meaning "Alive and well."
Popularity:
The name Kasha ranked 3877th in popularity for females of all ages in a sample of the 1990 US Census.
Though this name appears on the 1990 U.S. Census lists, it is used by only a small percentage of the general population.
Narrative:
This derivation is not certain, and it is possible this name and its many variations have been adopted simply for their pleasing sounds.