Those aren't the worst offenders. I'm referring to curry, cadr, lambda, monad, etc.

But map is confusing: it's also a data structure. "Wait, does map() create a new key-value dictionary?" Filter and collect are okay. Reduce is pretty arcane but tolerable, but the actual operation feels intuitively closer to "categorize" or "group."

My point about math was cultural. Math seems to revel in having its own peculiar and often even domain specific (even within mathematics!) terms and symbols for things.