entrancing vs hypnic

entrancing

adj

  • Causing a trance-like state; hypnotic. 

  • Causing ecstasy or rapture; enrapturing; charming. 

hypnic

adj

  • That induces sleep. 

noun

  • Any sleep-inducing drug. 

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