PUNCTILIO Meaning of PUNCTILIO in English [ pʌŋ(k)'tɪlɪəʊ ]■ noun ( plural ~s ) a fine or petty point of conduct or procedure.OriginC16: from Ital. puntiglio(n-) and Sp. puntillo , dimin. of punto 'a point'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004