adverb
or gay·ly ˈgālē, -li
Etymology: Middle English gayly, from gay + -ly
1. : in a gay manner:
a. : with marked liveliness, cheerfulness, or high spirits
she then ran gaily off, rejoicing — Jane Austen
: merrily
b. : with finery, elegance, or showiness (as of dress)
ladies gaily dressed
c. : in a manner that is colorful and tends to arouse gaiety
gaily decorated floats
2. chiefly Scotland : pretty much : to a considerable extent or degree