SEXAGESIMA Meaning of SEXAGESIMA in English [ ˌsɛksə'dʒɛsɪmə ]■ noun the Sunday before Quinquagesima.OriginME: from eccles. L., lit. 'sixtieth (day)', prob. named by analogy with Quinquagesima . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004