ethnology vs habit

ethnology

noun
  • The branch of anthropology that studies and compares the different human cultures. 

habit

verb
  • To clothe. 

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

  • An action performed on a regular basis. 

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

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

  • An addiction. 

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