noun Etymology: Middle English mychelmesse, from Old English Michaeles mæsse Michael's mass Date: before 12th century September 29 celebrated as the feast of St. Michael the Archangel
MICHAELMAS
Meaning of MICHAELMAS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012