habit vs singularity

habit

noun
  • An action performed repeatedly and automatically, usually without awareness. 

  • A long piece of clothing worn by monks and nuns. 

  • An action performed on a regular basis. 

  • A piece of clothing worn for a specific activity; a uniform. 

  • An addiction. 

verb
  • To clothe. 

singularity

noun
  • An unusual action or behaviour. 

  • A point where all parallel lines meet. 

  • Celibacy, singleness (as contrasted with marriage). 

  • A point where a measured variable reaches unmeasurable or infinite value. 

  • The value or range of values of a function for which a derivative does not exist. 

  • The state of being singular, distinct, peculiar, uncommon or unusual. 

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