postcommunion

[pohst-kuh-myoon-yuh n]

noun Ecclesiastical.

the part of a communion service that follows after the congregation has received communion.

Origin of postcommunion

First recorded in 1475–85, postcommunion is from the Medieval Latin word postcommūniōn- (stem of postcommūniō). See post-, communion

After the Celebrant has communicated, Vespers are sung by the choir, in place of the communion and postcommunion.
The Ceremonies of the Holy-Week at Rome
Charles Michael Baggs