koimesis

noun
koi·​me·​sis | \ ˈkēmēsə̇s\
plural -es

Definition of koimesis

: a feast in the Eastern Orthodox Church commemorating the death and the corporeal assumption of the Virgin Mary now celebrated on August 15

History and Etymology for koimesis

Middle Greek koimēsis, from Greek, sleep, sleep of death, from koiman to put to sleep

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