doubtfulness vs havering

doubtfulness

noun

  • The state or quality of being doubtful; doubt; uncertainty. 

havering

noun

  • Indecision, indecisive behaviour. 

adj

  • Hesitant; indecisive. 

  • Long-winded 

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