JUBILANTLY
happily, merrily, mirthfully, gayly, blithely, jubilantly
(adverb) in a joyous manner; “they shouted happily”
Source: WordNet® 3.1
Etymology
Adverb
jubilantly (comparative more jubilantly, superlative most jubilantly)
With jubilation or triumph.
Synonyms
• (with jubilation): delightedly, elatedly, joyfully
Source: Wiktionary
Ju"bi*lant*ly, adv.
Definition: In a jubilant manner.
JUBILANT
Ju"bi*lant, a. Etym: [L. jubilans, -antis, p. pr. of jubilare to
shout for joy: cf. F. jubila. See Jubilate.]
Definition: Uttering songs of triumph; shouting with joy; triumphant;
exulting. "The jubilant age." Coleridge.
While the bright pomp ascended jubilant. Milton.
Source: Webster’s Unabridged Dictionary 1913 Edition