wassailer vs friend

wassailer and friend both are nouns.

Word	Noun	Adjective	Verb	Adverb
wassailer	Yes	No	No	No
friend	Yes	No	No	No

As nouns, friend is a hypernym of wassailer; that is, friend is a word with a broader meaning than wassailer:

wassailer: someone who who drinks to the health of someone or the success of some venture
friend: a person who backs a politician or a team etc.

Other hypernyms of wassailer include admirer, booster, champion, protagonist, supporter.

wassailer (noun)	friend (noun)
someone who enjoys riotous drinking	a person you know well and regard with affection and trust
someone who who drinks to the health of someone or the success of some venture	a person with whom you are acquainted
	an associate who provides cooperation or assistance
	a person who backs a politician or a team etc.