The Origin of the Passover Seder
The pre-Christian Roman empire, celebrated annually the coming of spring with a meal called “Comunale”, where each neighborhood celebrated per it’s historical culture. The Jewish neighborhood called it’s meal “Seder”, i.e., a communale converted to Judaism. At the conclusion of the meal they stuck in the ground bundles of fragrences and burned the bundles. This conclusion of the meal was called Epi-comunale – the conclusion of the meal. Changing the fragrances to a half of the first meal- starting matsah and converted to Hebrew: this became Afi-coman.
Dov Henis (comments from 22nd century)