I hope this one won't stick. I never call it serverless because it doesn't make any sense to me (I call it "shared hosting", the term everyone already knows). Then, by pointing it out to those who do, maybe they realize that they're repeating marketing nonsense.

Cloud I gave up on quite early. It's a nonsense word but not an incorrect one: sure, it's not literally water vapor, but it's not like you're saying "yourcomputer" when the definition is "someone else's computer". Cloud is a new word for something that didn't really have a word. "Server" comes close, but in "cloud" there is the additional implication that it's not yours (making quite a difference in many cases, so I guess it warrants having another word). Serverless... that's just shared hosting.