The Collaborative International Dictionary of English v.0.48:

Hemstitch \Hem"stitch\, v. t. [imp. & p. p. Hemstitched; p.
   pr. & vb. n. Hemstitching.] [Hem + stitch.]
   To ornament at the head of a broad hem by drawing out a few
   parallel threads, and fastening the cross threads in
   successive small clusters; as, to hemstitch a handkerchief.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Hemstitched \Hem"stitched\, a.
   Having a broad hem separated from the body of the article by
   a line of open work; as, a hemistitched handkerchief.
   [1913 Webster]