blindside vs poleaxe

blindside

verb
  • To catch off guard; to take by surprise. 

  • To attack (a person) on his or her blind side. 

noun
  • The blindside flanker, a position in rugby union, usually number 6. 

  • A person's weak point. 

  • A tram/train driver's field of blindness around a tram (trolley/streetcar) or a train; the side areas behind the tram/train driver. 

  • The space on the side of the pitch with the shorter distance between the breakdown/set piece and the touchline; compare openside. 

  • A driver's field of blindness around an automobile; the side areas behind the driver. 

poleaxe

verb
  • To astonish; to shock or surprise utterly. 

  • To fell someone with, or as if with, a poleaxe. 

  • To stymie, thwart, cripple, paralyze. 

noun
  • An ax having both a blade and a hammer face; used to slaughter cattle. 

  • A long-handled battle axe, being a combination of ax, hammer and pike. 

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