Isn't this just an issue of having types, versus not? Although I do remember trying racket, where they solved the same problem by naming functions dict-remove

Isn't this just an issue of having types, versus not? Although I do remember trying racket, where they solved the same problem by naming functions dict-remove set-remove hash-remove vector-drop etc, which does the job but never have I been more offended thinking I was going in for its abstraction capabilities