fu vs hydro

fu

noun
  • flux unit 

  • A Chinese literary form developed during the times of the Han dynasty that combines prose and poetry, sometimes called rhymed prose. 

  • Expertise, mastery 

hydro

noun
  • hydroelectric power 

  • electrical power supply; specifically, electrical power provided by a utility (as a publicly-owned one); payment or bills for this. 

adj
  • hydroelectric 

  • hydroponic 

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