decimate

verbs

kill one in every ten, as of mutineers in Roman armies
decimate
verb group
kill in large numbers
"the plague wiped out an entire population"
annihilate, carry off, decimate, eliminate, eradicate, extinguish, wipe out
is a type of (narrower)
cause to die; put to death, usually intentionally or knowingly
"This man killed several people when he tried to rob a bank"; "The farmer killed a pig for the holidays"
kill
kill in large numbers
"the plague wiped out an entire population"
annihilate, carry off, decimate, eliminate, eradicate, extinguish, wipe out
is derived from
decimation