Webster's Revised Unabridged Dictionary · 1913

Darn

Darn (darn) , transitive verb

[Old English derne, prob. of Celtic origin; compare Welsh darnio to piece, break in pieces, Welsh & Arm. to English tear. Compare Tear, transitive verb]

To mend as a rent or hole, with interlacing stitches of yarn or thread by means of a needle; to sew together with yarn or thread.
He spent every day ten hours in his closet, in darning his stockings. — Swift

[In this sense, usually written with a hyphen.]

Collocations (2)
Darning last , See under Last.
Darning needle (Zoology) , (a) A long, strong needle for mending holes or rents, especially in stockings. Any species of dragon fly, having a long, cylindrical body, resembling a needle. These flies are harmless and without stings. [In this sense, usually written with a hyphen.] Called also devil's darning-needle.

Darn , noun

A place mended by darning.

Darn , transitive verb

A colloquial euphemism for Damn.