fright vs trepidation

fright

noun
  • A state of terror excited by the sudden appearance of danger; sudden and violent fear, usually of short duration; a sudden alarm. 

  • Someone strange, ugly or shocking, producing a feeling of alarm or aversion. 

adj
  • frightened; afraid; affright 

trepidation

noun
  • A fearful state; a state of concern or hesitation. 

  • An involuntary trembling, sometimes an effect of paralysis, but usually caused by terror or fear. 

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