intimate vs lead up to

intimate

verb
  • To suggest or disclose (something) discreetly. 

  • To notify. 

noun
  • A very close friend. 

  • Women's underwear, sleepwear, or lingerie, especially offered for sale in a store. 

adj
  • Pertaining to details that require great familiarity to know. 

  • Closely acquainted; familiar. 

  • Very finely mixed. 

  • Of or involved in a sexual relationship. 

  • Personal; private. 

lead up to

verb
  • To follow or mark a path toward. 

  • To set in motion; to act as a causal or preparatory event or sequence of events. 

  • To precede in time. 

How often have the words intimate and lead up to occurred in a corpus of books? (source: Google Ngram Viewer )