lip-smacking vs truly

lip-smacking

adv
  • Very. 

noun
  • The act of smacking one's lips 

adj
  • Tasty; appetizing. 

truly

adv
  • Very. 

  • In accordance with the facts; truthfully, accurately. 

  • Honestly, genuinely, in fact, really. 

How often have the words lip-smacking and truly occurred in a corpus of books? (source: Google Ngram Viewer )