chamois vs chammy leather

chamois and chammy leather both are nouns.

Word	Noun	Adjective	Verb	Adverb
chamois	Yes	No	No	No
chammy leather	Yes	No	No	No

As nouns, chamois and chammy leather are synonyms defined as:

chamois and chammy leather: a soft suede leather formerly from the skin of the chamois antelope but now from sheepskin

Other synonyms of chamois include chammy, chamois leather, shammy, shammy leather.

chamois (noun)	chammy leather (noun)
hoofed mammal of mountains of Eurasia having upright horns with backward-hooked tips	a soft suede leather formerly from the skin of the chamois antelope but now from sheepskin
a soft suede leather formerly from the skin of the chamois antelope but now from sheepskin