asperity vs storm

asperity

noun
  • The quality of being harsh or severe in the way one speaks or behaves toward people. 

  • An area that protrudes from a surface. 

  • A section of a fault line with high friction, such that there is no movement along this part of the fault except during an earthquake. 

  • The quality of being difficult or unpleasant to experience. 

  • The quality of having a rough or uneven surface. 

  • Something that is harsh and difficult to endure. 

storm

noun
  • A violent agitation of human society; a civil, political, or domestic commotion; violent outbreak. 

  • A thunderstorm. 

  • Any disturbed state of the atmosphere, especially as affecting the earth's surface, and strongly implying destructive or unpleasant weather. 

  • A violent assault on a stronghold or fortified position. 

  • A very strong wind on the wind scale, stronger than a gale, less than a hurricane (10 or higher on the Beaufort scale). 

verb
  • [army; crowd, rioters] To assault (a significant building) with the aim to gain power over it. 

  • To move quickly and noisily like a storm, usually in a state of uproar or anger. 

  • (rare, poetic) to assault, gain power over (heart, mind+). 

  • (weather it) To be violent, with strong winds and usually rain, thunder, lightning, or snow. 

  • (figurative) To rage or fume; to be in a violent temper. 

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