accumulative vs increscent

accumulative

adj
  • Characterized by accumulation; serving to collect or amass 

  • Having a propensity to amass; acquisitive. 

increscent

adj
  • Of the Moon: growing in apparent size; waxing. 

noun
  • A crescent oriented with horns turned to dexter (pointing left). 

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