jubilate/ˈd͡ʒuːbɪleɪt/EtymologySo called because the church service began on that day with the 66th Psalm, "Jubilate Deo".jubilate means The third Sunday after Easter. Lexicurio rates it Rare gem — a strength score of 82 out of 100.nameThe third Sunday after Easter.verbTo show elation or triumph; to rejoice.nounthe hundredth psalm (ninety-ninth in the Vulgate); the music to which it is set.A call to rejoice, outburst of joyous triumph.“They […] would ſpeedily be with us in a joint jubilate on the banks of the Avon.”