to the original Greek and the local vernacular, many Christian communities use other languages, especially where the prayer is repeated often. See also Jesus Prayer List of Greek phrases Kyriacos References Citations Sources Hoppin, Richard. Medieval Music. New York: W. W. Norton and Co., 1978. . Pages 133–134 (Gregorian chants), 150 (tropes). Christian prayer Christian terminology New Testament Greek words and phrases Order of Mass Religious formulas