jubilus

noun
ju·​bi·​lus | \ -ləs\
plural jubili\ -​ˌlī \

Definition of jubilus

: the melisma on the last a of alleluia from which the sequence of the mass developed

called also jubilatio

History and Etymology for jubilus

Medieval Latin, from Late Latin, cry of joy, from Latin jubilum, from jubilare to jubilate

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