burian vs rim

burian

noun
  • A barrow; mound; tumulus 

  • A camp; hill-fort. 

  • A tomb; sepulchre. 

rim

noun
  • A wheelrim. 

  • An edge around something, especially when circular. 

  • A membrane. 

  • A semicircular copydesk. 

verb
  • To form a rim on. 

  • To roll around a rim. 

  • To lick the anus of a partner as a sexual act. 

  • To follow the contours, possibly creating a circuit. 

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