/ flek; NAmE / noun , verb
■ noun [ usually pl. ] fleck (of sth)
1.
a very small area of a particular colour :
His hair was dark, with flecks of grey.
2.
a very small piece of sth :
flecks of dust / foam / dandruff
■ verb
[ vn ] [ usually passive ] fleck sth (with sth) to cover or mark sth with small areas of a particular colour or with small pieces of sth :
The fabric was red, flecked with gold.
His hair was flecked with paint.
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WORD ORIGIN
late Middle English (as a verb): perhaps from Old Norse flekkr (noun), flekka (verb), or from Middle Low German , Middle Dutch vlecke .