sur·sum cor·da /ˌsʊrsəmˈkɔrdə, ˌdɑ/
  Sur·sum cor·da  Eccl. In the Eucharist, the versicles immediately before the preface, inviting the people to join in the service by “lifting up the heart” to God.
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  sursum corda
       n : (Roman Catholic Church) a Latin versicle meaning `lift up
           your hearts'