trigger point vs umbrage

trigger point

noun
  • An event, arrangement, provocation, etc. that leads a certain, generally violent or angered, action to be taken. 

  • A hyperirritable spot in the skeletal muscle; a point in tender muscle that tends to elicit pain upon pressure or touch. ᵂᵖ 

umbrage

noun
  • A feeling of anger or annoyance caused by something offensive. 

  • A feeling of doubt. 

  • Leaves that provide shade, as the foliage of trees. 

verb
  • To shade. 

  • To displease or cause offense. 

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