forbear vs steam up

forbear

verb
  • To control oneself when provoked. 

  • To refuse; to decline; to withsay; to unheed. 

  • To keep away from; to avoid; to abstain from. 

  • To refrain from proceeding; to pause; to delay. 

steam up

verb
  • To become steamy. 

  • To become coated with condensation. To fog up. 

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

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