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 How can I create or modify new pull-down menu options?), use:

(keymap-set 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 How can I create or modify new pull-down menu options?), use:

(keymap-set global-map "<menu-bar> <edit> <forward>" nil)