I share my name with a sin, but I am not an abstract concept. People often compare laziness with me.

I share a name with a famous singer, a legendary fantasy weapon and something certain invertebrates do. What am I?

A force of nature; I only destroy. No fury, no mercy, no grief, no joy. My march is eternal - relentless, untamed. By time's gentle hand, my mark is proclaimed. I tear down mountains and cliffs on my own; I can also leave you a smooth polished stone.

I tell you the worth I grow beneath the earth I get color from the Dutch But I'm nothing but a cut

You do this every morning, or maybe afternoon. And when you sleep the sleep of sleeps, one might be held for you. You'll find me in the ocean, you'll find me in a lake-- An echo of a vessel's course, a moving ridge, a ...