exertion vs moil

exertion

noun
  • An expenditure of physical or mental effort. 

moil

noun
  • Hard work. 

  • The glass circling the tip of a blowpipe or punty, such as the residual glass after detaching a blown vessel, or the lower part of a gather. 

  • A spot; a defilement. 

  • Confusion, turmoil. 

  • The excess material which adheres to the top, base, or rim of a glass object when it is cut or knocked off from a blowpipe or punty, or from the mold-filling process. Typically removed after annealing as part of the finishing process (e.g. scored and snapped off). 

  • The metallic oxide from a blowpipe which has adhered to a glass object. 

verb
  • To defile or dirty. 

  • To churn continually; to swirl. 

  • To toil, to work hard. 

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