Wiktionary
n. braccae, breeches; an undergarment worn in medieval Europe
Wikipedia
Braies are a type of trouser worn by Celtic and Germanic tribes in antiquity and by Europeans subsequently into the Middle ages. In the later middle ages they were used exclusively as undergarments. Braies generally hung to the knees or mid-calf, resembling what are today called shorts. They were made of leather, wool, or, in later years, cotton or linen. They were adopted by the Romans as Braccae.
Usage examples of "braies".
A soft white shert covered his taut body down to the wrists, and faded brown braies hugged his thick thigh and calf muscles down to the ankles, but Eadyth knew from his swollen face and the reddening bite wounds evident in the open neckline that he suffered terribly with the urge to scratch.
I spraddled my legs, bent a bit, and let go through the breach in my braies.
Naturally this would have exposed his braies in indecent manner but he’d o’ercome this problem by winding his braies to above the knees where they met with baggy pants.
He wore a sorcot, underpants and braies same as everyone else, yet I stood hypnotized as one by one he discarded each piece while his diatribe against the French king continued unabated.
Indeed, all the thieves leered and made me wish for my boy’s braies again.
Hastily I slipped on my braies and tunic, but I was most confused by what I’d witnessed.
Rurik said, brushing off his tattered braies which now had a few more rips.
Rubbing his hands briskly on the legs of his braies, he grumbled aloud, "Since when do wenches show their love by marking a man for life?
Then, that fool, Vagn, could be seen checking inside his braies, discreetly, for any evidence of shrinkage.
All over the great hall, men were checking their braies and spouting out disclaimers to previously told lies.
The last time he'd been so anxious to have a female that he'd taken her with his braies about his boots he'd been an untried boy, not an experienced man.
Soon Rurik would travel to the loch on the other side of the knoll and wash off the red weapon-dew soaking his tunic and braies.
Although Rurik had already been to the loch to bathe with the other men, and his hair was fancy-braided on the sides with amber beads, he had stripped off his tunic and was working bare-chested now, with his black braies hanging low on his hips.
The worn fabric of his tight braies pulled taut on his thighs, and Eadyth stared, open-mouthed, for a lengthy moment at their well-formed contours.
He was not surprised when she jabbed him in the side with an elbow and hissed, "Mayhap I could put a few bees in your brother's braies.