verb (used without object), impinged, impinging.
to make an impression; have an effect or impact (usually followed by on or upon ): to impinge upon the imagination; social pressures that impinge upon one's daily life.
to encroach; infringe (usually followed by on or upon ): to impinge on another's rights.
to strike; dash; collide (usually followed by on, upon, or against ): rays of light impinging on the eye.
verb (used with object), impinged, impinging.
Obsolete. to come into violent contact with.

1525–35; < Medieval Latin impingere to strike against, drive at, equivalent to Latin im- im-1 + -pingere, combining form of pangere to fasten, drive in, fix; see impact

impingent, adjective
impinger, noun
impingement, noun
unimpinging, adjective

infringe, impinge. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
impinge (ɪmˈpɪndʒ)
1.  (intr; usually foll by on or upon) to encroach or infringe; trespass: to impinge on someone's time
2.  (intr; usually foll by on, against, or upon) to collide (with); strike
[C16: from Latin impingere to drive at, dash against, from pangere to fasten, drive in]

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

1530s, from L. impingere "drive into, strike against," from in- "in" + pangere "to fix, fasten." Sense of "encroach, infringe" first recorded 1758.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
But, where ideology impinges, is what do our political systems do with scientific knowledge that is now available.
Answer that first, because that impinges on the entire direction of the thread.
Where the imagination impinges on history, certain truths must be respected.
Greatly impinges on the unskilled sedentary occupational base since such jobs usually require good use of the hands.
Related Words
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