flyspeck
fly-speck
verb
To mark or cover a surface with tiny spots, as if by flies.
"The old mirror was flyspecked with age and dust."
noun
A very small, often dark, spot or mark, typically made by a fly.
"There was a flyspeck on the pristine white wall."
Thesaurus
Synonyms: petite, little, small, tiny, diminutive, midget, bantam, lilliputian