effluent vs effluxion

effluent

noun
  • A stream that flows out, such as from a lake or reservoir; an outflow; effluence. 

  • Sewage water that has been (partially) treated, and is released into a natural body of water; a flow of any liquid waste. 

adj
  • Flowing out; outflowing. 

effluxion

noun
  • The process of flowing out. 

  • That which has flowed out. 

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