MUSTACHIOS Meaning of MUSTACHIOS in English [ mə'stα:ʃɪəʊz ]■ plural noun a long or elaborate moustache.Derivativesmustachioed adjective OriginC16: from Sp. mostacho (sing.), from Ital. mostaccio (see moustache ). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004