deech

Etymology

From Middle English dechen, from Old English dēċan (“to smear, plaster, daub”), from Proto-West Germanic *dōkijan (“to apply with a rag or cloth, smear”), from *dōk (“cloth, rag”), from Proto-Germanic *dōkaz (“rag”); see duck (“canvas, cloth”). Cognate with Dutch doeken, German tuchen.

verb

1. (transitive) To smear, daub, plaster, or impregnate, especially with dirt which becomes hard and ingrained.
   The mud of Flanders clung to his boots and clothes. It was "deeched" into his skin, and round his eyes had left a stain so dark, it looked as if he had been painted for a theatrical make-up. 1917, Robert Bontine Cunninghame Graham, Brought Forward, page 60

noun

1. (UK dialectal, Northern England) Dirt ingrained on the hands, or in cracks, crevices, etc.