bivi vs laager

bivi

noun

  • A bivouac, a temporary camp. 

laager

noun

  • A defensive encampment encircled by wagons, especially by South African Boers. 

  • A temporary formation of armoured vehicles for resupply. 

verb

  • To arrange in a circular formation for defence. 

  • To camp in a circular formation. 

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