hemstitching vs hemstitch

hemstitching and hemstitch both are nouns.

Word	Noun	Adjective	Verb	Adverb
hemstitching	Yes	No	No	No
hemstitch	Yes	No	Yes	No

As nouns, hemstitching and hemstitch are synonyms defined as:

hemstitching and hemstitch: a stitch in which parallel threads are drawn and exposed threads are caught together in groups

hemstitching (noun)	hemstitch (noun)
a stitch in which parallel threads are drawn and exposed threads are caught together in groups	embroidery similar to drawnwork
	a stitch in which parallel threads are drawn and exposed threads are caught together in groups

hemstitching (verb)	hemstitch (verb)
	sew with hemstitches