blindside vs fettle

blindside

noun
  • A person's weak point. 

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

  • 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. 

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

  • To catch off guard; to take by surprise. 

fettle

noun
  • A person's mood or state, often assuming the worst. 

  • Sand used to line a furnace. 

  • One's mental state; spirits. 

  • a seam line left by the meeting of mold pieces. 

  • The act of fettling. 

  • A state of proper physical condition; kilter or trim. 

verb
  • To make preparations; to put things in order; to do trifling business. 

  • To line the hearth of a furnace with sand prior to pouring molten metal. 

  • To sort out, to fix, to mend, to repair. 

  • To be upset or in a bad mood. 

  • In ceramics, to remove (as by sanding) the seam lines left by the meeting of two molds. 

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