pucker vs untwist

pucker

noun
  • A state of perplexity or anxiety; confusion; bother; agitation. 

  • A fold or wrinkle. 

verb
  • To pinch or wrinkle; to squeeze inwardly, to dimple or fold. 

untwist

noun
  • A twist in the opposite direction. 

verb
  • To become untwisted. 

  • To remove a twist from. 

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