MYTHOS Meaning of MYTHOS in English [ 'mʌɪθɒs , 'mɪθɒs ]■ noun ( plural mythoi -θɔɪ ) technical1》 a myth or mythology. 2》 an ideology.OriginC18: from Gk. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004