anthology vs clump

anthology

noun
  • The study of flowers. 

  • A collection of literary works, such as poems or short stories, especially a collection from various authors. 

  • A work or series containing various stories with no direct relation to one another. 

  • An assortment of things. 

clump

noun
  • A small group of trees or plants. 

  • A thick group or bunch, especially of bushes or hair. 

  • A cluster or lump; an unshaped piece or mass. 

  • A dull thud. 

  • A thick addition to the sole of a shoe. 

  • The compressed clay of coal strata. 

verb
  • To gather in dense groups. 

  • To form clusters or lumps. 

  • To walk with heavy footfalls. 

  • To strike; to beat. 

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