drainage vs turbo

drainage

noun
  • A downward wind. 

  • A system of drains. 

  • A natural or artificial means for the removal of fluids from a given area by its draining away. 

turbo

noun
  • a turbine 

  • A turban shell. 

  • Autofire. 

verb
  • To autofire. 

adj
  • Very, super, etc.; usually relating to a qualitative value (as opposed to quantitative). 

  • Causing or relating to increased speed. 

  • With rapidly-increasing blind levels. 

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