Clŭmp, n.
n. [Ger. klump, lump, mass, D. klomp, Icel. klumpr, Dan. klump, Sw. klump, klimp, mass, clod, and klump, an unshapen piece of wood, from the root klimpa, preserved in M. H. Ger. klimpfen, to press together. Cf. CLUB.]
Sense 1. A shapeless mass of wood or other substance.
Sense 2. A cluster of trees or shrubs. “Screened with clumps of green for wintry bowers.” W. Scott.
Sense 3. The compressed clay of coal strata. Brande.