clump
1. clump \'kl*mp\ \'kl*m-pe-\ n [prob. fr. LG klump; akin to OE clamm] 1: a group of things clustered together 2: a compact mass 3: a heavy tramping sound - clumpy aj 2. clump vi 1: to tread clumsily and noisily 2: to form clumps : to arrange in or cause to form clumps