Fleck
WordNet
noun
(1) A small contrasting part of something
"A bald spot"
"A leopard's spots"
"A patch of clouds"
"Patches of thin ice"
"A fleck of red"
(2) A small fragment of something broken off from the whole
"A bit of rock caught him in the eye"
verb
(3) Make a spot or mark onto
"The wine spotted the tablecloth"