symbiotic vs synergic

symbiotic

adj
  • Of, or relating to symbiosis; living together. 

  • Of a relationship with mutual benefit between two individuals or organisms. 

noun
  • symbiotic star 

synergic

adj
  • Of or pertaining to synergy; synergistic 

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