less vs more and more

less

conj
  • unless 

noun
  • A smaller amount or quantity. 

adv
  • To a smaller extent or degree. 

  • Used for constructing syntactic diminutive comparatives of adjectives and adverbs. 

prep
  • Minus; not including 

det
  • Fewer; a smaller number of. 

  • A smaller amount of; not as much. 

more and more

adv
  • Indicates that the statement is becoming progressively more true. 

  • In a manner that progressively increases. 

  • Progressively more. 

det
  • Increasingly more; a growing number of; a growing quantity of. 

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