environ vs hem in

environ and hem in both are verbs.

Word	Noun	Adjective	Verb	Adverb
environ	No	No	Yes	No
hem in	No	No	Yes	No

As verbs, hem in is a hyponym of environ; that is, hem in is a word with a more specific, narrower meaning than environ:

Other hyponyms of environ include fringe, gird, girdle, cloister, close in, enclose, inclose, shut in, cloister.

environ (verb)	hem in (verb)
extend on all sides of simultaneously; encircle	surround so as to force to give up
	surround in a restrictive manner