JOYOUSLY
gleefully, joyously, joyfully
(adverb) in a joyous and gleeful manner; “the old man had greeted her gleefully”
Source: WordNet® 3.1
Etymology
Adverb
joyously (comparative more joyously, superlative most joyously)
In a joyful manner; joyfully.
Source: Wiktionary
JOYOUS
Joy"ous, a. Etym: [OE. joyous, joious, joios, F. joyeux.See Joy.]
Definition: Glad; gay; merry; joyful; also, affording or inspiring joy;
with of before the word or words expressing the cause of joy.
Is this your joyous city Is. xxiii. 7.
They all as glad as birds of joyous prime. Spenser.
And joyous of our conquest early won. Dryden.
Syn.
– Merry; lively; blithe; gleeful; gay; glad; mirthful; sportive;
festive; joyful; happy; blissful; charming; delightful.
– Joy"ous*ly, adv.
– Joy"ous*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition