Tupac spelled backwards is Caput.
Caput, a Latin word, meaning literally "head" and by metonymy "top",[1] has been borrowed in a variety of English words, including capital, captain, and decapitate. The name "Caputo", common in the Campania region of Italy, comes from the appellation used by some Roman military generals, and a variant form has surfaced more recently in the title Capo ( or Caporegime), the head of La Cosa Nostra.