Ju·bi·la·te 
(y′bə-lätā, -tē, j′-)
(y′bə-lätā, -tē, j′-)n.
1.
a. The 100th Psalm in the King James Bible and in most modern Catholic versions or the 99th in the Vulgate.
b. A musical setting of the Jubilate.
2. The third Sunday after Easter.
3. A song or an outburst of joy and triumph.
[Middle English, from Latin iūbilāte, second person pl. imperative of iūbilāre, to raise a shout of joy, the first word of the psalm.]