investiture vs sweater vest

investiture

noun
  • That which invests or clothes; covering; vestment. 

  • The formal installation or, generally, the appointment of a bishop, or (uncountable) bishops in general. 

  • The act of investing, as with possession or power; formal bestowal or presentation of a possessory or prescriptive right. 

sweater vest

noun
  • A sleeveless sweater, commonly knit in argyle. 

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