PAPACY Meaning of PAPACY in English [ 'peɪpəsi ]■ noun ( plural papacies ) 1》 the office or authority of the Pope. 2》 the tenure of office of a pope.OriginME: from med. L. papatia , from papa 'pope'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004