in earnest vs truth-telling

in earnest

adj

  • Sincere; determined; truthful. 

adv

  • Having a sincere intent. 

  • With considerable commitment, determination, or effect; significantly. 

truth-telling

adj

  • Telling the truth; honest, frank. 

noun

  • The act of telling the truth. 

How often have the words in earnest and truth-telling occurred in a corpus of books? (source: Google Ngram Viewer )