intensity vs spirit

intensity

noun
  • The quality of being intense. 

  • Time-averaged energy flux (the ratio of average power to the area through which the power "flows"); irradiance. 

  • Can mean any of radiant intensity, luminous intensity or irradiance. 

  • Synonym of radiance. 

  • The degree of strength. 

  • The severity of an earthquake in terms of its effects on the earth's surface, and buildings. The value depends on the distance from the epicentre, and is not to be confused with the magnitude. 

spirit

noun
  • Enthusiasm. 

  • A supernatural being, often but not exclusively without physical form; ghost, fairy, angel. 

  • Energy; ardour. 

  • Temper or disposition of mind; mental condition or disposition; intellectual or moral state. 

  • A volatile liquid, such as alcohol. The plural form spirits is a generic term for distilled alcoholic beverages. 

  • The manner or style of something. 

  • Stannic chloride. 

  • One who is vivacious or lively; one who evinces great activity or peculiar characteristics of mind or temper. 

  • Intent; real meaning; opposed to the letter, or formal statement. 

  • The soul of a person or other creature. 

verb
  • Sometimes followed by up: to animate with vigour; to excite; to encourage; to inspirit. 

  • To carry off, especially in haste, secrecy, or mystery. 

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