snag vs hew

snag is a noun but hew is not a noun.

Word	Noun	Adjective	Verb	Adverb
snag	Yes	No	Yes	No
hew	No	No	Yes	No

As verbs, hew is a hypernym of snag; that is, hew is a word with a broader meaning than snag:

snag (noun)	hew (noun)
an unforeseen obstacle
an opening made forcibly as by pulling apart
a dead tree that is still standing, usually in an undisturbed forest
a sharp protuberance

snag (verb)	hew (verb)
catch on a snag	strike with an axe; cut down, strike
hew jaggedly	make or shape as with an axe
get by acting quickly and smartly