johnnycake vs hoecake

johnnycake and hoecake both are nouns.

Word	Noun	Adjective	Verb	Adverb
johnnycake	Yes	No	No	No
hoecake	Yes	No	No	No

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

johnnycake: cornbread usually cooked pancake-style on a griddle (chiefly New England)
hoecake: thin usually unleavened johnnycake made of cornmeal; originally baked on the blade of a hoe over an open fire (southern)

Other hyponyms of johnnycake include Shawnee cake.

johnnycake (noun)	hoecake (noun)
cornbread usually cooked pancake-style on a griddle (chiefly New England)	thin usually unleavened johnnycake made of cornmeal; originally baked on the blade of a hoe over an open fire (southern)