fashion vs irregularity

fashion

noun
  • Popular trends. 

  • The make or form of anything; the style, shape, appearance, or mode of structure; pattern, model; workmanship; execution. 

  • A current (constantly changing) trend, favored for frivolous rather than practical, logical, or intellectual reasons. 

  • A style or manner in which something is done. 

verb
  • To make, build or construct, especially in a crude or improvised way. 

irregularity

noun
  • A violation of rules. 

  • An object or event that is not regular or ordinary. 

  • An instance of being irregular. 

  • Irregular bowel movement (e.g. diarrhea or constipation). 

  • The state or condition of being irregular, or the extent to which something is irregular. 

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