wain vs waggon

wain and waggon both are nouns.

Word	Noun	Adjective	Verb	Adverb
wain	Yes	No	No	No
waggon	Yes	No	No	No

As nouns, waggon is a hypernym of wain; that is, waggon is a word with a broader meaning than wain:

wain: large open farm wagon
waggon: any of various kinds of wheeled vehicles drawn by an animal or a tractor

Other hypernyms of wain include wagon.

wain (noun)	waggon (noun)
large open farm wagon	any of various kinds of wheeled vehicles drawn by an animal or a tractor
	a car that has a long body and rear door with space behind rear seat