concordat
noun /kɒnˈkɔːdæt/
  /kənˈkɔːrdæt/
 - an agreement, especially between the Roman Catholic Church and the state(尤指罗马教廷与各国政府订立的)政教协定,政教条约 词源early 17th cent.: from French, or from Latin concordatum ‘something agreed upon’, neuter past participle of concordare ‘be of one mind’, from con- ‘together’ + cor, cord- ‘heart’.