merrymaking vs conviviality

merrymaking and conviviality both are nouns.

Word	Noun	Adjective	Verb	Adverb
merrymaking	Yes	No	No	No
conviviality	Yes	No	No	No

As nouns, merrymaking and conviviality are synonyms defined as:

merrymaking and conviviality: a boisterous celebration; a merry festivity

Other synonyms of merrymaking include jollification.

merrymaking (noun)	conviviality (noun)
a boisterous celebration; a merry festivity	a boisterous celebration; a merry festivity
	a jovial nature