peddler vs chapman

peddler and chapman both are nouns.

Word	Noun	Adjective	Verb	Adverb
peddler	Yes	No	No	No
chapman	Yes	No	No	No

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

peddler: someone who travels about selling his wares (as on the streets or at carnivals)
chapman: archaic term for an itinerant peddler

Other hyponyms of peddler include cheapjack, crier, muffin man, sandboy, transmigrante.

peddler (noun)	chapman (noun)
someone who travels about selling his wares (as on the streets or at carnivals)	archaic term for an itinerant peddler
an unlicensed dealer in illegal drugs