Whur

Webster's Dictionary of the English Language

·vi To snarl or growl, as a dog.

II. Whur ·noun A humming or whirring sound, like that of a body moving through the air with velocity; a whir.

III. Whur ·vi To make a rough, humming sound, like one who pronounces the letter r with too much force; to Whir; to Birr.