Aaronic vs presbyteral

Aaronic

adj
  • Of or pertaining to the lower order of priests. 

  • Pertaining to or characteristic of a high priest; priestly. 

  • Pertaining to Aaron (elder brother of Moses). 

presbyteral

adj
  • Of or pertaining to a presbyter or presbytery; presbyterial. 

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