At first, the sessions between Y and warder seem to be a form of psychotherapy.
From the time.com
The warder came to my cell to remind me that prison was a place of punishment.
From the en.wikipedia.org
Alberto Ammann and Luis Tosar as prison warder and convict leader in Cell 211.
From the guardian.co.uk
She sounds more like a prison warder than a newly-wed in her mid-twenties.
From the telegraph.co.uk
A warder used to say that Freud was coming to be with his people, the family of old masters.
From the guardian.co.uk
A new prison warder must pretend to be an inmate when a riot erupts, trapping him inside the jail.
From the mirror.co.uk
A late Babylonian text makes him the underworld prison warder of the seven children of the god Emmesharra.
From the en.wikipedia.org
A Dublin prison warder in favor of capital punishment has an affair with the wife of a man on death row.
From the post-gazette.com
Warder Moira Cameron, second from left, is the first female Beefeater in the 522-year history of the British guard corps.
From the newsobserver.com
More examples
A person who works in a prison and is in charge of prisoners
(wardership) the position of warder
Warder (West Frisian: Waerder) is a small village in the Dutch province of North Holland. It is a part of the municipality of Zeevang, and lies about 7 km northeast of Purmerend.
A Warder in the world of Robert Jordan's Wheel of Time series is a person (traditionally a man) bonded by an Aes Sedai through the use of saidar to become her bodyguard as she travels.
(Warders) Wyrm sign of the law keepers and judges.
The half of an Aes Sedai/Gaidin pair you can trust, as s/he will simply kill you if there's a problem. Some Aes Sedai are so untrustworthy they need several Warders. The Warder receives several benefits from the bonding, including the ability to last long periods without sleep. ...
A soldier assigned to guard an entrance or entryway; see SENTRY, WATCH, WATCHER, ARGUS. [v: General Orders of a Sentry] Also, a rod or wand, staff or truncheon that serves as a mark of office or authority; see BATON, BATS 'n' HATS, SWAGGER STICK, SANDBAG.
A warrior bonded to an Aes Sedai. The bonding is a thing of the One Power, and by it he gains such gifts as quick healing, the ability to go for long periods without food, water, or rest, and the ability to sense the taint of the Dark One at a distance. ...
A keeper (one having charge of buildings or grounds), or watchman at a magazine.