lack vs wealth

lack

verb
  • To be short (of or for something). 

  • To be without, not to have, to need, to require. 

noun
  • A deficiency or need (of something desirable or necessary); an absence, want. 

wealth

noun
  • A great amount; an abundance or plenty. 

  • Riches; a great amount of valuable assets or material possessions. 

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