That's the best part of language; even if you don't speak them, you can learn bits and pieces, which can be very fun and useful. I find the more languages I'm exposed to (and being an engineering professor really helps with that a lot), the more I end up incorporating little bits and pieces. I always hope my appropriations come across as respectful and positive, but I do fear accidentally offending.By the way, anyone who has spent even a relatively short time in the New York City metropolitan area will recognize these words, regardless of their cultural heritage. And the connection (recognition of the word "chutzpah")!was instantly made after my reply, pointing that she had to rethink the word not based on the pronunciation she guessed from the spelling.
I do like the sounds and textures of different languages,
As an aside, there's a very small chance I might know your sister, moriond. It's a long-shot, but based on things the person I know has said, it's actually plausible, even if not especially likely.