Why do pharma companies come up with nonsensical names for their drugs?

It’s just some jumble of letters which seemly don’t have any relation to anything, not the chemicals, what it does, or anything that would be obviously associative.

Like - WEGOVY? Why is that a weight loss drug? Is it an acronym??

Why is it something that’s not a regular word? Or combination of words? Trademark? Who comes up with these names??