A supporting shaft or member on or with which a wheel or a set of wheels revolves.
A rod on which a wheel turns, or one connected to a wheel so that they turn together.
Origin of axle
- Middle English axel from Old Norse öxull
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle English axle, eaxle, from Old English eaxl (“shoulder, armpit”), from Proto-Germanic *ahslō (“shoulder”), from Proto-Indo-European *aḱs- (“armpit”). Cognate with Eastern Frisian acsle (“shoulder”), Dutch oksel (“armpit”), German Achsel (“armpit”), Swedish axel (“shoulder”), Latin axilla (“armpit”), Latin axis (“axle”), Greek άξονας (áxonas, “axle”), Sanskrit अक्ष (ákṣa, “axle”), Sanskrit कक्ष (kakṣá, “room, armpit”), Russian ось (os', “axle”).
- A combination of Old English eax and Old Norse öxull.