Thurl

Thurl, v. t. [See Thrill.] 1. To cut through; to pierce. [Obs.] Piers Plowman.

2. (Mining) To cut through, as a partition between one working and another.

Thurl (?), n. [AS. þyrel a hole. √53. See Thirl, Thrill.] 1. A hole; an aperture. [Obs.]

2. (Mining) (a) A short communication between adits in a mine. (b) A long adit in a coalpit.