Mining. [Of obscure origin.] (See quots.)
1883. Gresley, Gloss. Coal-mining, 240. Stilling, the walling of a shaft within the tubbing above the stone head.
1899. Baring-Gould, Bk. West, II. Cornw., v. 63. [Tin mining] The walling on each side of a tye or adit is called stilling.
