[Angelino97]

See if it comes up with 1 in 3 jews on earth were decimated at the hands of the nazis.

Technically, "decimate" means 1 in 10 are killed.

Decimation was a Roman military punishment. When an entire cohort or legion of troops had shown cowardice or dereliction, the Romans would randomly kill 1 in 10 of the troops as punishment.

[FreedomForce]

Language evolves. I would say the Roman meaning of decimate is not the primary meaning of it now.