darning
US /ˈdɑːr.nɪŋ/
UK /ˈdɑːr.nɪŋ/

1.
the action or process of mending a hole in knitted material by interweaving yarn with a needle
:
•
She spent the evening doing some darning on her socks.
•
The art of darning requires patience and skill.
1.
present participle of darn
:
•
She was busy darning a hole in her sweater.
•
He found his grandmother darning socks by the fireplace.