pax Meaning, Definition & Usage

  1. noun (Roman Catholic Church) a greeting signifying Christian love for those assisting at the Eucharist
    kiss of peace.

WordNet

Pax noun
Etymology
L. pax peace. See Peace.
Definitions
  1. (Eccl.) The kiss of peace; also, the embrace in the sanctuary now substituted for it at High Mass in Roman Catholic churches.
  2. (R. C. Ch.) A tablet or board, on which is a representation of Christ, of the Virgin Mary, or of some saint and which, in the Mass, was kissed by the priest and then by the people, in mediæval times; an osculatory. It is still used in communities, confraternities, etc.
    Kiss the pax, and be quiet like your neighbors. Chapman.

Webster 1913