geon

Etymology 1
Coined by J. A. Wheeler from gravitational electromagnetic entity.

Noun

 * 1)  A hypothetical electromagnetic or gravitational wave held together in a confined region by the gravitational attraction of its own field energy.

Noun

 * 1)  Any of a group of basic geometric forms capable of being recognised as a component of a real object.

Noun

 * 1) A large unit of time, used to measure gradual geological change.

Etymology
From an unstressed form of, from , whence also 🇨🇬, 🇨🇬.

Adjective

 * 1) that, yon