deictic (adj.)

in logic, "direct, proving directly" (opposed to elenchic), 1828, from Latinized form of Greek deiktikos "able to show," from deiktos "shown," verbal adjective from deiknynai "to show" (from PIE root *deik- "to show"). Related: Deictical (1630s); deictically.

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Definitions of deictic from WordNet
deictic (n.)
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; "words that introduce particulars of the speaker's and hearer's shared cognitive field into the message"- R.Rommetveit;
Synonyms: deictic word
deictic (adj.)
relating to or characteristic of a word whose reference depends on the circumstances of its use;
deictic pronouns