Brwydr, n. a battle, a conflict
Brwyn, n. a pricking; a smarting rushes; a. pricking, smarting
Brwynad, n. a pricking
Brwyneg, n. a place where rushes grow
Brwynen, n. a rush; a track
Bywyniad, n. a smelt
Brwyno, v. to prick; to throb
Brwynog, a. having rushes
Brwys, a. luxuriant, fertile
Brwysg, a. unwieldy; drunk