J / jūbĭlum
noun

jūbĭlum

gen. jūbĭli · gender neuter · decl. 2nd
a wild cry, shout, shepherd's song
a wild cry, shout, shepherd's song: audivit jubila Cyclops, Sil. 14, 475: montana jubila, Calp. Ecl. 1, 80.