wellhole

(Îngilîzî)

1. The open space in a floor, to accommodate a staircase.
2. The open space left beyond the ends of the steps of a staircase.
3. A cavity which receives a counterbalancing weight in certain mechanical contrivances, and is adapted also for other purposes.

Etîmolojî (Îngilîzî)

From well + hole.

Hevwate

well

stairwell

well hole

stair well

Werger

kuyu