otherness vs other

otherness is a noun but other is not a noun.

Word	Noun	Adjective	Verb	Adverb
otherness	Yes	No	No	No
other	No	Yes	No	No

otherness (noun)	other (noun)
the quality of being not alike; being distinct or different from that otherwise experienced or known

otherness (adjective)	other (adjective)
	not the same one or ones already mentioned or implied; quantifier, other
	recently past
	very unusual; different in character or quality from the normal or expected
	belonging to the distant past