drove vs troopers

drove

noun
  • A cattle drive or the herd being driven by it; thus, a number of cattle driven to market or new pastures. 

  • A narrow drain or channel used in the irrigation of land. 

  • A road or track along which cattle are habitually driven; a drove road. 

  • A large number of people on the move (literally or figuratively). 

  • The grooved surface of stone finished by the drove chisel. 

  • A group of hares. 

  • A broad chisel used to bring stone to a nearly smooth surface. 

verb
  • To herd cattle; particularly over a long distance. 

  • To finish (stone) with a drove chisel. 

  • simple past tense of drive 

troopers

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