daugh, dauch Sc. Mining.
(dɑx)
[Etymol. uncertain: the form points to an earlier dalgh, dalȝ; cf. dauk.]
See quots.
| 1793 Ure Hist. Rutherglen 289 Daugh, a soft and black substance, chiefly of clay, mica, and what resembles coal-dust. 1807 J. Headrick Arran 217 The dauch which separates the two seams of coal. 1859–65 Page Geol. Terms, Douk, Dauk, or Daugh, applied in mining to beds or bands of hard, tough clay or clayey admixture; generally without lamination, and more or less compact and homogeneous. |
Hence ˈdauchy a., of the character of daugh.
| 1807 J. Headrick Arran 217, 8 or 10 inches of a dauchy till. 1845 Whistlebinkie (Sc. Songs) (1890) I. 373 The ice is dauchie. |