decimate vs plateau

decimate

verb
  • To devastate: to reduce or destroy significantly but not completely. 

  • To replace a high-resolution model with another of lower but acceptable quality. 

  • To reduce to one-tenth: to destroy or remove nine-tenths of anything. 

  • To destroy or remove one-tenth of anything. 

plateau

verb
  • (of a varying quantity) To reach a stable level after a period of increase; to level off. 

noun
  • A comparatively stable level after a period of increase. 

  • A notable level of attainment or achievement. 

  • A largely level expanse of land at a high elevation; tableland. 

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