Carnage
early 17th century: from French, from Italian carnaggio, from medieval Latin carnaticum, from Latin caro, carn- ‘flesh’.
wiktionary
Borrowed from Middle French carnage [1], from a Norman or Picard variant Old Northern French) of Old French charnage, from char(“flesh”), or from Vulgar Latin *carnaticum(“slaughter of animals”), itself from Latin carnem, accusative of caro(“flesh”).
etymonline
carnage (n.)
"great destruction by bloody violence, massacre," c. 1600, from French carnage (16c.), from Old Italian carnaggio "slaughter, murder," from Medieval Latin carnaticum "flesh," from Latin carnaticum "slaughter of animals," from carnem (nominative caro) "flesh," originally "a piece of flesh" (from PIE root *sker- (1) "to cut"). In English it has been always used more often of slaughters of men than of beasts. Southey (1795) tried to make a verb of it.