My understanding is that you are correct that "rizz" comes from "charisma", and when used as an adjective it's pretty well used the same (although there may be

My understanding is that you are correct that "rizz" comes from "charisma", and when used as an adjective it's pretty well used the same (although there may be shades of difference I'm simply missing), but notably "rizz" also gets used as a verb in a way that "charisma" does not.