n. [ L., imperat. of jubilare to shout for joy. ] [ 1913 Webster ]
1. The third Sunday after Easter; -- so called because the introit is the 66th Psalm, which, in the Latin version, begins with the words, “Jubilate Deo.” [ 1913 Webster ]
2. A name of the 100th Psalm; -- so called from its opening word in the Latin version. [ 1913 Webster ]