coat vs mercury

coat

noun
  • A covering of material, such as paint.ᵂᵖ 

  • Canvas painted with thick tar and secured round a mast or bowsprit to prevent water running down the sides into the hold (now made of rubber or leather). 

  • A coat of arms.ᵂᵖ 

  • An outer garment covering the upper torso and arms.ᵂᵖ 

  • The habit or vesture of an order of men, indicating the order or office; cloth. 

  • A coat card. 

  • The fur or feathers covering an animal's skin.ᵂᵖ 

verb
  • To cover like a coat. 

  • To cover with a coating of some material. 

mercury

noun
  • A silvery-colored, toxic, metallic chemical element, liquid at room temperature, with atomic number 80 and symbol Hg. 

  • One of the elemental principles formerly thought to be present in all metals. 

  • Any plant of any species of the genus and the genus Mercurialis. 

  • The poison oak or poison ivy. 

  • An annual plant, annual mercury (Mercurialis annua), formerly grown for its medicinal properties; French mercury, herb mercury. 

  • Ambient pressure or temperature (from the use of mercury in barometers and thermometers). 

  • A similar edible plant (Blitum bonus-henricus), otherwise known as English mercury or allgood. 

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