nutriment vs sustenance

nutriment and sustenance both are nouns.

Word	Noun	Adjective	Verb	Adverb
nutriment	Yes	No	No	No
sustenance	Yes	No	No	No

As nouns, nutriment and sustenance are synonyms defined as:

Other synonyms of nutriment include aliment, alimentation, nourishment, nutrition, victuals.

nutriment (noun)	sustenance (noun)
a source of materials to nourish the body	the act of sustaining life by food or providing a means of subsistence
	a source of materials to nourish the body
	the financial means whereby one lives