disembody

To cause someone's soul, spirit, consciousness, voice, etc, to become separated from the physical body.

To separate (a part of the body) from the body.

"[he] wore the high, stiff collars which were the fashion of the day: in pictures these tend to disembody his head, making him look constrained, uncomfortable, yet they remained his choice."

Jerusha turned, a flush on her cheeks that wasn't makeup, a swath of steam from the vaporizer swirling around her chest, disembodying her head.

To discharge from military service or array.