kickshaw vs bone marrow

kickshaw and bone marrow both are nouns.

Word	Noun	Adjective	Verb	Adverb
kickshaw	Yes	No	No	No
bone marrow	Yes	No	No	No

As nouns, bone marrow is a hyponym of kickshaw; that is, bone marrow is a word with a more specific, narrower meaning than kickshaw:

Other hyponyms of kickshaw include choice morsel, tidbit, titbit, savory, savoury, confection, sweet, ambrosia, nectar, gelatin, jelly, marrow.

kickshaw (noun)	bone marrow (noun)
something considered choice to eat	the fatty network of connective tissue that fills the cavities of bones
	very tender and very nutritious tissue from marrowbones