inflow vs soakage

inflow

noun
  • The act or process of flowing in or into 

  • Influence from outside. 

  • Anything which flows in or into 

verb
  • To flow in. 

soakage

noun
  • The act of soaking. 

  • A source of water in Australian deserts, where water has seeped into the sand. 

  • food or nonalcoholic beverages consumed before or during a bout of drinking to slow down the onset of drunkenness 

  • The amount of liquid soaked in. 

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