OTIOSE Meaning of OTIOSE in English [ 'əʊtɪəʊs , 'əʊʃɪ- , -z ]■ adjective1》 serving no practical purpose. 2》 archaic idle.Derivatives~ly adverb OriginC18: from L. otiosus , from otium 'leisure'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004