1. a short repeated invocation (in Greek or in translation) used in many Christian liturgies, especially at the beginning of the Eucharist or as a response in a litany.
Word Originfrom Greek Kuriē eleēson ‘Lord, have mercy’.
Kyrie, a transliteration of Greek Κύριε, vocative case of Κύριος, is a common name of an important prayer of Christian liturgy, also called the Kyrie eleison. Wikipedia