What*ev"er (?), pron. Anything soever which; the thing or things of any kind; being this or that; of one nature or another; one thing or another; anything that may be; all that; the whole that; all particulars that; -- used both substantively and adjectively.

Whatever fortune stays from his word.

Whatever Earth, all-bearing mother, yields.

Whatever be its intrinsic value.

&fist; Whatever often follows a noun, being used elliptically. "There being no room for any physical discovery whatever" [sc. it may be]. Whately.

What*ev"er (?), pron. Anything soever which; the thing or things of any kind; being this or that; of one nature or another; one thing or another; anything that may be; all that; the whole that; all particulars that; -- used both substantively and adjectively.

Whatever fortune stays from his word.

Whatever Earth, all-bearing mother, yields.

Whatever be its intrinsic value.

&fist; Whatever often follows a noun, being used elliptically. "There being no room for any physical discovery whatever" [sc. it may be]. Whately.

• No matter which; for any
        Whatever choice you make, there will be consequences.
  
• Anything that.
        Whatever you say is fine with me.
  
• A holophrastic expression used discourteously to indicate that the speaker does not consider the matter worthy of further discussion.
       Parent: For the last time, clean up your room!
       Child: Whatever.
  
• Anything; used to indicate that the speaker does not care which of several options should be chosen.
       Co-worker: Do you want Chinese or Mexican for lunch today?
       Other co-worker: Whatever.