envelop vs capsulate

envelop is not an adjective while capsulate is an adjective.

Word	Noun	Adjective	Verb	Adverb
envelop	No	No	Yes	No
capsulate	No	Yes	Yes	No

As verbs, capsulate is a hyponym of envelop; that is, capsulate is a word with a more specific, narrower meaning than envelop:

Other hyponyms of envelop include benight, tube, capsule, capsulise, capsulize, engulf, sheathe, cocoon, bathe, cover, enshroud, hide, shroud.

envelop (adjective)	capsulate (adjective)
	used of seeds or spores that are enclosed in a capsule

envelop (verb)	capsulate (verb)
enclose or enfold completely with or as if with a covering	enclose in a capsule