Martyrios: Monk, founder of a monastery in the Judean desert and patriarch of Jerusalem (478-486). Born in Cappadocia, Martyrios spent several years in an Egyptian monastery, before arriving in Palestine in 457. He died in 486.
Martyrion: Part of a church built upon the remains of a saint or a commemorative shrine.
Monophysitism: a theory, condemned by the fourth Ecumenical Council (Chalcedon, 451), according to which Christ had a single divine nature.