deixis vs deictic

deixis and deictic both are nouns.

Word	Noun	Adjective	Verb	Adverb
deixis	Yes	No	No	No
deictic	Yes	Yes	No	No

deixis (noun)	deictic (noun)
the function of pointing or specifying from the perspective of a participant in an act of speech or writing; aspects of a communication whose interpretation depends on knowledge of the context in which the communication occurs	a word specifying identity or spatial or temporal location from the perspective of a speaker or hearer in the context in which the communication occurs

deixis (adjective)	deictic (adjective)
	relating to or characteristic of a word whose reference depends on the circumstances of its use