means the act of bringing a person, group, or nation under domination and control, forcing them into submission or servitude.

from From Latin subjugare, literally 'to bring under the yoke' — from sub ('under') and jugum ('yoke,' the wooden beam strapped across oxen's necks). The Romans gave it a chilling ritual reality: defeated armies were marched beneath an arch of spears called the iugum, made to stoop under it like cattle, a public bending of the body that announced the breaking of the will. To be subjugated was, quite literally, to pass under the yoke.