archmage vs enchanter

archmage

noun
  • A very powerful mage. 

enchanter

noun
  • A spellcaster, conjurer, wizard, sorcerer or soothsayer who specializes in enchantments. 

  • One who enchants or delights. 

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