Could be but it'd be funnier to me ATM were it fake and an attempt to project modern realities back through time, aka an anachronism.
I've read that there exists this interchangeability with Ancient Egyptian Ls and Rs and've read where Ra or Re (we do not know which since they had no vowels) pronounced "Ray" may have really been Arra or Alla, but this come to think of it may have also been a product of such an agenda.