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