climax vs delve

climax

verb
  • To reach or bring to a climax (in any sense). 

noun
  • A rhetorical device in which a series is arranged in ascending order. 

  • The final term of a rhetorical climax. 

  • The culmination of sexual pleasure, an orgasm. 

  • A culmination or acme: the last term in an ascending series 

  • The culmination of a narrative's rising action, the turning point. 

  • The culmination of ecological development, whereby species are in equilibrium with their environment. 

delve

verb
  • To search thoroughly and carefully for information, research, dig into, penetrate, fathom, trace out 

  • To dig; to excavate. 

  • To dig into the ground, especially with a shovel. 

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