grovel vs kerb

grovel

verb
  • To be prone on the ground. 

  • To be slavishly nice to someone or apologize in the hope of securing something. 

  • To take pleasure in mundane activities. 

  • To abase oneself before another person. 

  • To crawl. 

kerb

verb
  • To damage vehicle wheels or tyres by running into or over a pavement kerb. 

  • To take a dog to the kerb for the purpose of evacuating. 

noun
  • The raised edge between the pavement and the roadway, typically made of concrete though originally consisting of a line of kerbstones. 

  • A stone ring built to enclose and sometimes revet the cairn or barrow built over a chamber tomb. 

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