kickshaw vs sustenance

kickshaw and sustenance both are nouns.

Word	Noun	Adjective	Verb	Adverb
kickshaw	Yes	No	No	No
sustenance	Yes	No	No	No

As nouns, sustenance is a hypernym of kickshaw; that is, sustenance is a word with a broader meaning than kickshaw:

Other hypernyms of kickshaw include aliment, alimentation, nourishment, nutriment, nutrition, victuals.

kickshaw (noun)	sustenance (noun)
something considered choice to eat	the act of sustaining life by food or providing a means of subsistence
	a source of materials to nourish the body
	the financial means whereby one lives