copious vs multifold

copious

adj
  • Vast in quantity or number, profuse, abundant; taking place on a large scale. 

  • Full of thought, information, or matter; exuberant in words, expression, or style. 

  • Having an abundant supply. 

multifold

adj
  • Many; very diverse; manifold. 

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