Mephistophelian vs angelic

Mephistophelian

angelic

adj
  • Belonging to, or proceeding from, angels; resembling, characteristic of, or partaking of the nature of, an angel. 

  • A regular Hausdorff space is said to be angelic if the closure of each relatively countably compact set A is compact and the closure consists of the limits of sequences in A. 

  • Very sweet-natured or well-behaved. 

  • Of or pertaining to angelic acid. 

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