harshen vs weary

harshen

verb
  • To make, or to become harsh; render hard and rough. 

  • To render peevish, morose, or austere. 

weary

verb
  • To make or to become weary. 

adj
  • Expressive of fatigue. 

  • Having the strength exhausted by toil or exertion; tired; fatigued. 

  • Having one's patience, relish, or contentment exhausted; tired; sick. 

  • Causing weariness; tiresome. 

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