the.com/savagery
Brutality with the lights off — cruelty stripped of every excuse civilization invented.
means Behavior so violent or fierce it abandons the restraint we usually call being human.
from From Latin silvaticus, of the woods, via Old French sauvage — once it simply meant wild, untamed, belonging to the forest rather than the town. The forest got a bad reputation.
Original senseJust meant living in the wild woods.
Modern slangNow praises a devastatingly clever insult.
Linguistic cousinShares roots with sylvan and Pennsylvania.