A Zefhar is the finest bow of its kind. The name comes the shape of the arc which resembles the elven runic character by the same name.
“
The best examples of such weapons, bent fourfold, bore the elven name of zefhar, since the bow’s shape formed that rune. Milva had used zefhars for several years and couldn’t imagine a bow capable of outclassing them.
”
— pg(s). 2, Baptism of Fire (UK edition)