pat vs tremble

pat

noun
  • The sound of a light slap or tap with a soft flat object, especially of a footstep 

  • A flattish lump of soft matter, especially butter or dung. 

  • A light tap or slap, especially with the hands 

adj
  • Exactly suitable, fitting, apt; timely, convenient, opportune, ready for the occasion; especially of things spoken. 

  • Trite, being superficially complete, lacking originality. 

adv
  • Opportunely, in a timely or suitable way. 

  • Perfectly. 

verb
  • To stroke or fondle (an animal). 

  • To hit lightly and repeatedly with the flat of the hand to make smooth or flat 

  • To (gently) tap the flat of one's hand on a person or thing. 

  • To gently rain. 

tremble

noun
  • A shake, quiver, or vibration. 

verb
  • To shake, quiver, or vibrate. 

  • To fear; to be afraid. 

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