From blazon +‎ -er.

• IPA^(key): /ˈbleɪzənɚ/

blazoner (plural blazoners)

1. One who blazons:
   • 1796, Edmund Burke, a letter to a Noble Lord:

     These historians , recorders , and blazoners of virtues and arms differ wholly from that other description of historians who never assign any act of politicians to a good motive

   1. One who blazons (describes) coats of arms; a herald.
   2. One who makes widely known or proclaims.
   3. A slanderer.

• “blazoner”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

• Albronze, reblazon