overcasting means: Overcasting is not a term that refers to weather but rather to a way of casting off. The overcasting stitch is a slanted, hand-stitched needlework that’s usually worked on top of another stitch in order to create a design motif. Overcasting is also used to cover raw edges and prevent them from fraying. (in Fashion Dictionary)

What else does overcasting mean?

Sewing raw edges with overlying, long stitches to stop raveling. (in Merlin Dictionary)

It was done. (in Merlin Dictionary)

This stitch is used for overcast. (in Merlin Dictionary)