unfold vs wither

unfold

verb
  • To turn out; to happen; to develop. 

  • To undo a folding. 

  • To release from a fold or pen. 

  • To open (anything covered or closed); to lay open to view or contemplation; to bring out in all the details, or by successive development. 

  • To reveal. 

noun
  • In functional programming, a kind of higher-order function that is the opposite of a fold. 

wither

verb
  • To lose vigour or power; to languish; to pass away. 

  • To become helpless due to emotion. 

  • To cause to shrivel or dry up. 

  • To shrivel, droop or dry up, especially from lack of water. 

  • To make helpless due to emotion. 

How often have the words unfold and wither occurred in a corpus of books? (source: Google Ngram Viewer )