calm vs pacify

calm is a noun but pacify is not a noun.

Word	Noun	Adjective	Verb	Adverb
calm	Yes	Yes	Yes	No
pacify	No	No	Yes	No

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

Other hyponyms of calm include lull, compose, appease, assuage, conciliate, gentle, gruntle, lenify, mollify, placate.

calm (noun)	pacify (noun)
steadiness of mind under stress
wind moving at less than 1 knot; 0 on the Beaufort scale

calm (adjective)	pacify (adjective)
(of weather) free from storm or wind
not agitated; without losing self-possession

calm (verb)	pacify (verb)
cause to be calm or quiet as by administering a sedative to	fight violence and try to establish peace in (a location)
make steady	cause to be more favorably inclined; gain the good will of
make calm or still
become quiet or calm, especially after a state of agitation