Necrosis

google

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mid 17th century: modern Latin, from Greek nekrōsis (see necro-, -osis).

wiktionary

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From Ancient Greek νέκρωσις(nékrōsis).

etymonline

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necrosis (n.)

"death of bodily tissue," 1660s, from Latinized form of Greek nekrosis "a becoming dead, state of death," from nekroun "make dead," from nekros "dead body" (from PIE root *nek- (1) "death"). Related: Necrotic.