im·pel

[im-pel]
verb (used with object), im·pelled, im·pel·ling.
1.
to drive or urge forward; press on; incite or constrain to action.
2.
to drive or cause to move onward; propel; impart motion to.
Origin:
1375–1425; late Middle English impellen < Latin impellere to strike against, set in motion (transitive), equivalent to im- im-1 + pellere to strike, move (something); akin to pulse1

Related forms
un·im·pelled, adjective

Can be confused: 1. compel, impel (see synonym study at compel) ; 2. compelled, impelled.

Synonyms
1. actuate. See compel.

Antonyms
1. restrain.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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00:10
Impel is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
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Collins
World English Dictionary
impel (ɪmˈpɛl) [Click for IPA pronunciation guide]
 
—vb , -pels, -pelling, -pelled
1.  to urge or force (a person) to an action; constrain or motivate
2.  to push, drive, or force into motion
 
[C15: from Latin impellere to push against, drive forward, from im- (in) + pellere to drive, push, strike]
 
im'pellent
 
—n, —adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

impel
1490, from L. impellere "to push, strike against, drive forward, urge on," from in- "into" + pellere "to push, drive."
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Good cause is that which would reasonably impel the average able-bodied,
  qualified worker to give up her employment.
Moreover, our brains impel us not only toward vices, but also toward virtues.
Maybe it was the moral laziness and social coziness that impel elites to
  protect their own.
Parole is a matter of grace, not right, to be granted or withheld as sound
  official discretion may impel.
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