galvanize vs steam up

galvanize

verb
  • To shock or stimulate into sudden activity, as if by electric shock. 

  • To coat with rust-resistant zinc. 

  • To coat with a thin layer of metal by electrochemical means. 

  • To switch sides between Union and Confederate in the American Civil War. 

steam up

verb
  • To become coated with condensation. To fog up. 

  • To become steamy. 

  • To bring (a steam boiler) up to working steam pressure. 

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