5.43 How do I delete menus and menu options?

The simplest way to remove a menu is to set its keymap to ‘nil’. For example, to delete the ‘Words’ menu (see Modifying pull-down menus), use:

(define-key global-map [menu-bar words] nil)

Similarly, removing a menu option requires redefining a keymap entry to nil. For example, to delete the ‘Forward word’ menu option from the ‘Edit’ menu (we added it in Modifying pull-down menus), use:

(define-key global-map [menu-bar edit forward] nil)