schnapps vs John Barleycorn

schnapps and John Barleycorn both are nouns.

Word	Noun	Adjective	Verb	Adverb
schnapps	Yes	No	No	No
John Barleycorn	Yes	No	No	No

As nouns, John Barleycorn is a hypernym of schnapps; that is, John Barleycorn is a word with a broader meaning than schnapps:

schnapps: any of various strong liquors especially a Dutch spirit distilled from potatoes
John Barleycorn: an alcoholic beverage that is distilled rather than fermented

Other hypernyms of schnapps include booze, hard drink, hard liquor, liquor, spirits, strong drink.

schnapps (noun)	John Barleycorn (noun)
any of various strong liquors especially a Dutch spirit distilled from potatoes	an alcoholic beverage that is distilled rather than fermented