frith vs vegetation

frith

noun
  • A forest or wood; woodland generally. 

  • Brushwood or undergrowth, sometimes in the form of a hedge. 

  • Land with mostly undergrowth and few trees; also, land in between forests or woods; pastureland which is not in use. 

  • A hedge, especially one made from brushwood which has been wattled; also, a movable frame made from wattled branches, a hurdle. 

vegetation

noun
  • There were large amounts of vegetation in the forest. 

  • An abnormal verrucous or fibrinous growth 

  • The act or process of vegetating, or growing as a plant does; vegetable growth. 

  • Plants, taken collectively. 

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