As an adverb merrily
is in a cheerful or merry manner.
As a noun liveliness is
the quality of being lively; animation; energy.
merrily
English
Adverb
(
en adverb)
In a cheerful or merry manner.
- Merrily we row our boat... We're having so much fun we're singing about it.
liveliness
English
Noun
(-)
The quality of being lively; animation; energy.