hoy vs wherry

hoy and wherry both are nouns.

Word	Noun	Adjective	Verb	Adverb
hoy	Yes	No	No	No
wherry	Yes	No	No	No

As nouns, wherry is a hyponym of hoy; that is, wherry is a word with a more specific, narrower meaning than hoy:

Other hyponyms of hoy include dredger, houseboat, pontoon, scow, Norfolk wherry.

hoy (noun)	wherry (noun)
a flatbottom boat for carrying heavy loads (especially on canals)	light rowboat for use in racing or for transporting goods and passengers in inland waters and harbors
	sailing barge used especially in East Anglia