There's no reason to think the Greek/Latin "torturor" definition has anything to do with the use of your name. Sure, you can take almost any name and find out that the same syllables mean something awful in some language. That doesn't mean the name COMES from that language. Purity is a trait parents have long desired for their daughters. I'm sure women named Katrina (or Catrina, Katarina, Katharine, etc.) should be looking to German for the true source and meaning of their names.