「親(した)し()き()仲(なか)に()も()礼(れい)儀(ぎ)あ()り() shitashikinakanimoreigiari」という toiu言(こと)葉(ば) kotobaを o知(し)ら()な()い() shiranaiの noか ka？ Don't you know the saying 'even between close friends, there are manners to observe'? etiquetteclassical あり (exists)~のか (explanatory question)classical attributive ~き (i-adjective)親しき仲にも礼儀あり (manners even among friends)