fleck vs scurf

fleck and scurf both are nouns.

Word	Noun	Adjective	Verb	Adverb
fleck	Yes	No	Yes	No
scurf	Yes	No	No	No

As nouns, scurf is a hyponym of fleck; that is, scurf is a word with a more specific, narrower meaning than fleck:

Other hyponyms of fleck include matchwood, exfoliation, scale, sliver, splinter.

fleck (noun)	scurf (noun)
a small contrasting part of something	(botany) a covering that resembles scales or bran that covers some plant parts
a small fragment of something broken off from the whole	a thin flake of dead epidermis shed from the surface of the skin

fleck (verb)	scurf (verb)
make a spot or mark onto