DORMITION
Dormition, Feast of Dormition
(noun) celebration in the Eastern Orthodox Church of the Virgin Mary’s being taken up into heaven when her earthly life ended; corresponds to the Assumption in the Roman Catholic Church and is also celebrated on August 15th
Source: WordNet® 3.1
Etymology
Noun
dormition (countable and uncountable, plural dormitions)
The process of falling asleep.
(euphemistic) The process of death or the actual death itself.
(Eastern Orthodoxy, often, capitalized) The death and assumption into heaven of the Virgin Mary.
Synonyms
• sleep
Source: Wiktionary