roister vs make merry

roister and make merry both are verbs.

Word	Noun	Adjective	Verb	Adverb
roister	No	No	Yes	No
make merry	No	No	Yes	No

As verbs, make merry is a hypernym of roister; that is, make merry is a word with a broader meaning than roister:

roister: engage in boisterous, drunken merrymaking
make merry: celebrate noisily, often indulging in drinking; engage in uproarious festivities

Other hypernyms of roister include jollify, make happy, make whoopee, racket, revel, wassail, whoop it up.

roister (verb)	make merry (verb)
engage in boisterous, drunken merrymaking	celebrate noisily, often indulging in drinking; engage in uproarious festivities