(krok) noun
1. An earthenware pot or jar.
2. A fragment of earthenware.
—v.t. To store in a crock, as butter. [OE crocca]

(krok) noun
1. The black product of combustion; soot.
2. The coloring matter that rubs off from cloth; smut.
—v.t. To stain; soil. [Origin uncertain]

(krok) noun Brit. Dial.
1. An old ewe.
2. A broken–down horse.
3. Slang A worthless, decrepit, or disabled person.
4. Slang One who is not expert at a game or sport; a duffer.
—v.i. To become weak or sick. [ME crocke <Scand. Cf. Sw. krake a decrepit horse.]