Other forms: bondages
Bondage is the state of being bound, like an enslaved person. If you're in handcuffs, you're in bondage.
The word bondage has meant "condition of a serf or slave" since the 1300s, the same time the word bond came along to mean "anything that binds." Bondage originated around the time Dante was writing The Inferno, in which Satan flaps his wings to try and break free of bondage, as he's stuck in ice up to his chest.