Starting with post-'67 jubilance, they narrate an insider history of the occupation.
1860; see jubilant + -ance.
1660s, from Latin jubilantem (nominative jubilans), present participle of jubilare "to call to someone," in Christian writers, "to shout for joy," related to jubilum "wild shout." First attested in Milton. Related: Jubilantly.