axial vs initiatory

axial

adj
  • Relating to, resembling, or situated on an axis 

  • Belonging to the axis of the body, or to the axis of any appendage or organ 

  • In the same direction as the axis, parallel to the axis. 

  • oriented close to the axis running through the centre of a cyclohexane ring, as opposed to equatorial. See w:Axial bond. 

noun
  • A plane parallel to the surface of a tooth. 

  • A flight feather that appears between the primaries and secondaries on some birds. 

initiatory

adj
  • Of or pertaining to initiation 

  • inceptive, initial, inaugural or introductory 

noun
  • An introductory act or rite. 

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