What does the Latin word 'rex' mean?

I remember my father telling me about when Satchmo was playing in a royal command concert for King George V in the 30s and before a song, he yelled up to the royal box "this one's for you Rex!"

Kiwozzie, love your story. I'm glad you had someone pass down a good story. sadly it seems to becoming a lost tradition. Hope you will carry on with ❤

Good explanation. The earliest record of the word is from the 5th century BC, where the word can be found inscribed into a stone buried in the Forum, which reads, "RECEI." The latin is primitive, but it does make reference to a regal period of a young Rome. By this time, the word Rex meant more like "chief" than king, as the Romans of the 1st century BC (Caesar and Cicero) understood it.

A German Rex is not a large cat. “German Rex cats tend to be small in size. A fully grown German Rex cat might weigh between 6-10 pounds or more…” —Cats.com