whir 
(wûr, hwûr)
(wûr, hwûr)v. whirred, whir·ring, whirs
v.intr.
To produce a vibrating or buzzing sound or move while making such a sound: The fan whirred in the window. A bee whirred past my ear.
v.tr.
To cause to make or move with such a sound: "She whirred the wheel of the sewing-machine round and round" (Virginia Woolf).
n.
A sound of buzzing or vibration: the whir of turning wheels.
[Middle English whirren, probably of Scandinavian origin.]