commensurate vs plateau

commensurate

verb
  • To proportionate; to adjust. 

  • To reduce to a common measure. 

adj
  • Describing a crystal in which every atom or molecule is placed in the same relative position 

  • Of a proportionate or similar measurable standard. 

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 commensurate and plateau occurred in a corpus of books? (source: Google Ngram Viewer )