noun / verb
hem
HEM/hem/
A folded and sewn edge of cloth, or making such an edge.
The turned-up corner of the napkin reveals a neatly stitched hem.

Etymology
Old English hem meant a cloth or garment’s border. The modern sense specifies how that border is finished: by folding and sewing it.
In context
You can see that turned back hem is about 2 in probably. So that's really nice and substantial but at the at the hem of the dress, it's a baby hem.
More examples
- The hem of my skirt catches on the chair.
- I need to hem these pants before I wear them.
- She hems the curtains so they clear the floor.
Forms
hem · hems · hemmed · hemming
hemline noun — The line formed by a garment’s lower edge.