path vs pathway

path and pathway both are nouns.

Word	Noun	Adjective	Verb	Adverb
path	Yes	No	No	No
pathway	Yes	No	No	No

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

path (noun)	pathway (noun)
a course of conduct	a trodden path
a way especially designed for a particular use	a bundle of myelinated nerve fibers following a path through the brain
an established line of travel or access
a line or route along which something travels or moves