tranquillise vs assuage

tranquillise and assuage both are verbs.

Word	Noun	Adjective	Verb	Adverb
tranquillise	No	No	Yes	No
assuage	No	No	Yes	No

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

Other hyponyms of tranquillise include lull, compose, appease, conciliate, gentle, gruntle, lenify, mollify, pacify, placate.

tranquillise (verb)	assuage (verb)
cause to be calm or quiet as by administering a sedative to	provide physical relief, as from pain
make calm or still	satisfy (thirst)
	cause to be more favorably inclined; gain the good will of