baldrick

miekkavyö A broad belt, sometimes richly ornamented, worn over one shoulder, across the breast, and under the opposite arm; less properly, any belt.
1400?, Sir Gawain and the Green Knight, line 2485.:

And the bright green belt on his body he bore, oblique, like a baldrick, bound at his side below his left shoulder, laced in a knot...

That a woman conceiv'd me, I thank her; that she brought me up, I likewise give her most humble thanks; but that I will have a rechate winded in my forehead, or hang my bugle in an invisible baldrick, all women shall pardon me.

And from his blazoned baldrick slung, a mighty silver bugle hung...

The sword was carried in a belt of buff or other leather girded round the body, or thrown over the right shoulder, these shoulder belts were called baudricks.