kiss of peace

noun

(in certain Christian churches) a ceremonial greeting or embrace given as a token of Christian love and unity.
a ceremonial kiss formerly given, especially at a baptism or Eucharistic service, as a token of Christian love and unity.

Origin of kiss of peace

First recorded in 1895–1900

Also called pax.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018