alleviative vs alleviatory

alleviative and alleviatory both are adjectives.

Word	Noun	Adjective	Verb	Adverb
alleviative	No	Yes	No	No
alleviatory	No	Yes	No	No

As adjectives, alleviative and alleviatory are synonyms defined as:

alleviative and alleviatory: moderating pain or sorrow by making it easier to bear

Other synonyms of alleviative include lenitive, mitigative, mitigatory, palliative.

alleviative (adjective)	alleviatory (adjective)
moderating pain or sorrow by making it easier to bear	moderating pain or sorrow by making it easier to bear