cot vs pannier

cot

noun
  • A cover or sheath; a fingerstall. 

  • A simple bed, especially one for portable or temporary purposes. 

  • A bed for infants or small children, with high, often slatted, often moveable sides. 

  • A wooden bed frame, slung by its corners from a beam, in which officers slept before the introduction of bunks. 

  • A pen, coop, or similar shelter for small domestic animals, such as sheep or pigeons. 

  • A small, crudely-formed boat. 

pannier

noun
  • A piece of basketwork for protecting archers, or, filled with gravel or sand, for forming and protecting embankments, etc. 

  • A large basket or bag fastened, usually in pairs, to the back of a bicycle or pack animal, or carried in pairs over the shoulders. 

  • One of a pair of hoops used to expand the volume of a woman's skirt to either side. 

  • A breadbasket. 

  • A decorative basket for the display of flowers or fruits. 

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