1690s, "making a loud sound," also "full of noise," from noise (n.) + -y (2). Earlier was noiseful (late 14c.). Related: Noisily; noisiness.
a noisy cafeteria
a small noisy dog
a noisy sweater
nohow
noise
noiseless
noise-maker
noisome
noisy
nolens volens
noli me tangere
noll
nolle prosequi
nolo contendere