centesimation
The selection by lot of every hundredth man (of an army or group of prisoners or mutineers) for execution.
countable, rare, uncountable
CENTESIMATION, a milder kind of military puniſhment, in caſes of deſertion, mutiny, and the like, when only every hundredth man is executed.
Where it comes from
From the Latin centēsimātiō, from centēsimō, from centēsimus (“hundredth”); compare quintation, septimation, decimation, vicesimation, and tricesimation.
Adapted from the Wiktionary entry centesimation (CC BY-SA 4.0).