[Opinions] The Latin word for "heaven?"
Not bad, though I admit at first glance I thought it was a body part. But then I remembered my (very basic) Latin education...
How are you pronouncing it? In Latin, I believe it would be said similar to "KY-lum." I like that sound, but even if that's what you're going for, I think people would be more inclined to pronouncing it "KAY-lum," which doesn't strike my fancy, personally.