Whirred vs Whurred - What's the difference?

As verbs the difference between whirred and whurred

is that whirred is past tense of whirr while whurred is past tense of whur.

(head)

(whirr)

* whir

(en verb)

To move or vibrate (something) with a buzzing sound.

To make a sibilant buzzing or droning sound.

To cause (something) to make such a sound.

* (make a sibilant buzzing or droning sound ): buzz, drone, hum, purr, whine, whistle, whizz * (cause (something) to make such a sound ):

(en noun)

A sibilant buzz or vibration; the sound of something in rapid motion.

A bustle of noise and excitement.

* (sibilant buzz or vibration ): buzz, drone, hum, purr, whine, whistle, whizz * (bustle of noise and excitement ): bustle, hustle

(head)

(whur)

(en noun)

(sound of rapid motion)

(whurr)

(Webster 1913)