Gyrwynt, n. a tornado
Gyrhynt, n. a current
Gysb, n. staggers; black beetle
Gyst, a. humid, moist, damp
Gystwng, n. act of lowering
Gystyngu, v. to lower, to abase
Gyth, n. a murmur
Gythiad, n. a murmuring
Gythol, murmuring, grumbling
Gythu, v. to murmur, to grumble