causal vs demiurgic

causal

noun
  • a word (such as because) that expresses a reason or a cause 

adj
  • of, relating to, or being a cause of something; causing 

demiurgic

adj
  • Relating to a demiurge. 

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