ducky vs macushla

ducky and macushla both are nouns.

Word	Noun	Adjective	Verb	Adverb
ducky	Yes	No	No	No
macushla	Yes	No	No	No

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

Other hyponyms of ducky include chosen, mollycoddle, teacher's pet.

ducky (noun)	macushla (noun)
a special loved one	(an Irish term of address expressing affection) darling