Coal-mining. north. Also -ing. ‘An opening cut into a slice taken off a pillar from six to eight feet in width, in the board and pillar system of working coal’ (Gresley, Gloss. Coal-mining T., 1883).
1851. Greenwell, Coal-trade Terms Northumb. & Durh., 31. Wherever practicable, when a jenking is necessary, it should be driven loose sided; a fast jenking very frequently causing a creeping to take place.
1893. Heslop, Northumbld. Gloss., Jenkin.
