lack vs worth

lack

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

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

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

worth

noun
  • Value. 

  • Wealth, fortune, riches, property, possessions. 

  • Merit, excellence. 

  • An amount that could be achieved or produced in a specified time. 

adj
  • Deserving of. 

  • Having a value of; proper to be exchanged for. 

  • Making a fair equivalent of, repaying or compensating. 

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