A person who performs hemstitching, either professionally or as a craft; also, a sewing machine attachment that creates hemstitched patterns.
From 'hemstitch' plus the agent suffix '-er,' which creates nouns referring to someone who performs the action of the root verb. Hemstitchers were skilled artisans, particularly common in textile manufacturing.
Professional hemstitchers in 19th-century factories were highly skilled workers whose fine eyesight and steady hands were considered so valuable that they were among the best-paid workers in textile mills.
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