fleck

(noun) a small fragment of something broken off from the whole. Synonyms: bit, chip, flake, scrap. Example: "A bit of rock caught him in the eye."

(noun) a small contrasting part of something. Synonyms: spot, speckle, dapple, patch, maculation. Examples: "A bald spot." "A leopard's spots." "A patch of clouds." "Patches of thin ice." "A fleck of red."

(verb) make a spot or mark onto. Synonyms: spot, blob, blot. Example: "The wine spotted the tablecloth."