You could also go with something like Bast, or Bastet, (Or Ihmotep, Ra, Horus, etc), one of the Egyptian cat god names. One of our cats is named Loki (Viking gods are fun too). I kinda like god names for cats, it seems most fitting for them.
“Eternity is a terrible thought. I mean, where's it going to end?”
― Tom Stoppard, Rosencrantz and Guildenstern Are Dead
― Tom Stoppard, Rosencrantz and Guildenstern Are Dead