Berg vs Thorn

Berg

name
  • A municipality of Troms, Norway. 

  • A former duchy and later grand duchy in Westphalia (Western Germany). 

  • A surname from German common in the US, associated with German or Scandinavian ancestry. 

Thorn

name
  • A village in Maasgouw municipality, Limburg province, Netherlands. 

  • Former name of Whitethorn, Humboldt County, California. 

  • An unincorporated community in Chickasaw County, Mississippi, United States. 

  • A hamlet in Houghton Regis parish, Central Bedfordshire, Bedfordshire, England (OS grid ref TL0024). 

  • A topographic surname from Middle English for someone living near a thorn bush. 

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