of pain, "caused by potentially harmful stimuli," 1904, from Latin noci-, combining form of nocere "to do harm" (from PIE root *nek- (1) "death") + second element from receptive.
Entries linking to nociceptive
*nek- 1
Proto-Indo-European root meaning "death." It forms all or part of: innocent; innocuous; internecine; necro-; necropolis; necrosis; necromancy; nectar; nectarine; nociceptive; nocuous; noxious; nuisance; obnoxious; pernicious.
It is the hypothetical source of/evidence for its existence is provided by: Sanskrit nasyati "disappears, perishes," Avestan nasyeiti "disappears," nasu- "corpse," Old Persian vi-nathayatiy "he injures;" Greek nekros "corpse;" Latin nex, genitive necis "violent death, murder" (as opposed to mors), nocere "to harm, hurt," noxius "harmful;" Greek nekus "dead" (adj.), nekros "dead body, corpse;" Old Irish ec, Breton ankou, Welsh angeu "death."
receptive adj.
early 15c., "having the quality of receiving, acting as a receptacle," from Medieval Latin receptivus, from Latin recipere "to hold, contain" (see receive). Meaning "affecting or relating to the comprehension of speech or writing" is from 1926. Related: Receptively; receptiveness; receptivity.