MOT vs lava

MOT

noun
  • magnetooptical trap 

  • An aggregate which meets the Ministry of Transport standard as a compact subbase. 

  • management of technology. 

  • Ministry of Transport test; an annual test of roadworthiness for British cars over three years old. 

  • microwave oven transformer 

  • A member of the tribe; i.e. a Jew 

lava

noun
  • The molten rock ejected by a volcano from its crater or fissured sides. 

  • Magma. 

  • A shade of red, named after the volcanic lava. 

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