Although it sounds like a person's name in English, "Kyrie Eleison" is a term of Greek origin that means "Lord have mercy”. In addition, it is also a Christian prayer present in Psalm 51 of King David.
The psalm is a confession of the author for having had a relationship with Bathsheba, wife of Uriah, and a manifestation of repentance for having committed adultery, hence the saying "Lord, have mercy pity”.
see more
02/22/22: What does this date mean? What are the effects on our…
What is each washing machine symbol for?
When you think of religious expressions used with ancient languages, Latin is the first language to come to mind. However, this time, the term has Greek origin, the Kyrios (Lord) is equivalent in Christian Hellenism, to divinity. In the Middle Ages it also became a litany prayer.
It was common for the expression to be said in the liturgies of various religions, not only in Catholic churches, but also in Anglican, Orthodox and Lutheran churches. Currently, it is common for the faithful to sing and proclaim the term daily in masses.