Ammonian
adjective
Am·mo·ni·an
əˈmōnēən,
-nyən
: of or relating to Ammonius of Alexandria, reputed author of a harmony of the Gospels and a work on the agreement of the teachings of Moses and Jesus
Word History
Etymology
Ammonius, 3d century Alexandrian Christian philosopher + English -an
First Known Use
1793, in the meaning defined above