hoecake vs journey cake

hoecake and journey cake both are nouns.

Word	Noun	Adjective	Verb	Adverb
hoecake	Yes	No	No	No
journey cake	Yes	No	No	No

As nouns, journey cake is a hypernym of hoecake; that is, journey cake is a word with a broader meaning than hoecake:

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

Other hypernyms of hoecake include johnny cake, johnnycake.

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