Dictionary.com Unabridged

spoke

2 [spohk]
noun
1.
one of the bars, rods, or rungs radiating from the hub or nave of a wheel and supporting the rim or felloe.
2.
something that resembles the spoke of a wheel.
3.
a handlelike projection from the rim of a wheel, as a ship's steering wheel.
4.
a rung of a ladder.
verb (used with object), spoked, spoking.
5.
to fit or furnish with or as with spokes.

Origin:
before 900; Middle English; Old English spāca; cognate with Dutch speek, German Speiche

spokeless, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
spoke1 (spəʊk)
 
vb
1.  the past tense of speak
2.  archaic, dialect or a past participle of speak

spoke2 (spəʊk)
 
n
1.  a radial member of a wheel, joining the hub to the rim
2.  a radial projection from the rim of a wheel, as in a ship's wheel
3.  a rung of a ladder
4.  (Brit) put a spoke in someone's wheel to thwart someone's plans
 
vb
5.  (tr) to equip with or as if with spokes
 
[Old English spāca]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

spoke
(of a wheel), O.E. spaca "spoke," related to spicing "large nail," from P.Gmc. *spaikon (cf. O.S. speca, O.Fris. spake, Du. spaak, O.H.G. speicha, Ger. speiche "spoke"), probably from PIE *spei- "sharp point" (see spike (n.1)).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Air travel across hubs and rail travel along the spokes.
Start thinking of ways to distribute financial activity, to break the wheel and
  spokes away from the hub.
The spokes throw out the mud, snow, etc and the spokes don't clog.
In the first, a central hub surrounded by eight spokes, the animals were
  required to return to a specific starting point.
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