oater vs westerly

oater

noun
  • A movie or television show about cowboy or frontier life; a western movie. 

westerly

noun
  • A westerly wind or storm, one blowing or coming from the west. 

adv
  • Towards the west. 

adj
  • Facing the west; directed towards the west. 

  • Coming from the west. 

  • Located towards or in the west. 

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