CORSELET n. 2 definitions
Armor for the body, as, the body breastplate and backpiece taken together; -- also, used for the entire suit of the day, including breastplate and backpiece, tasset and headpiece.
CORUNDUM n.
The earth alumina, as found native in a crystalline state, including sapphire, which is the fine blue variety; the oriental ruby, or red sapphire; the oriental amethyst, or purple sapphire; and adamantine spar, the hair-brown variety. It is the hardest substance found native, next to the diamond.