noun.
The third Sunday in Advent: so named from the first word of the introit of the mass of that day, Gaudete, “Rejoice ye.”
Word Usage
"Laetare Jerusalem: et conventum facite omnes qui diligitis eam: gaudete cum laetitia, qui in tristitia fuistis: ut exsultetis, et satiemini ab uberibus consolationis vestrae."