morsel vs cud

morsel and cud both are nouns.

Word	Noun	Adjective	Verb	Adverb
morsel	Yes	No	No	No
cud	Yes	No	No	No

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

Other hyponyms of morsel include chaw, chew, plug, quid, wad, crumb, sop, sops.

morsel (noun)	cud (noun)
a small amount of solid food; a mouthful	a wad of something chewable as tobacco
a small quantity of anything	food of a ruminant regurgitated to be chewed again