IPA: /wətˈɛvər/
KK: /wʌtˈɛvər/
Any kind or amount of something; it can refer to all or any part of something without restriction.
You can choose whatever you like from the menu.
Used to refer to anything or everything, often in a dismissive way.
You can choose whatever you like from the menu.
Anything or everything that is mentioned or referred to; used to indicate a lack of restriction or choice.
You can choose whatever you like from the menu.
Whatever → It is formed from "what" (from Old English *hwæt*, meaning what or which) and "-ever" (from Old English *æfre*, meaning ever or at any time). The word "whatever" means anything that is or can be, regardless of what it is.
Think of 'what' to remember that 'whatever' refers to anything or everything, no matter what it is.