if a cat wishes to have a new name or the leader wishes to change his/her name, they have a renaming ceremony. Here are the words:
Spirits of StarClan, you know every cat by name. I ask you now to take away the name from the cat you see before you, for it no longer stands for what he/she is. By my authority as Clan leader, and with the approval of our warrior ancestors, I give this cat a new name. From this moment on he/she will be known as (new name), for (reason).