younker vs pup

younker and pup both are nouns.

Word	Noun	Adjective	Verb	Adverb
younker	Yes	No	No	No
pup	Yes	No	Yes	No

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

Other hyponyms of younker include blade, hobbledehoy, puppy, pupil, school-age child, schoolchild, slip.

younker (noun)	pup (noun)
a young person (especially a young man or boy)	young of any of various canines such as a dog or wolf
	an inexperienced young person

younker (verb)	pup (verb)
	give birth to (a puppy)