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im·pinge (ĭm-pĭnj́)

[Latin impingere, in-, against; see in–2, + pangere, to fasten.]

verb: -pinged, -ping·ing, -ping·es. 

intransitive verb 

  1. To collide or strike: Sound waves impinge on the eardrum.
  2. To encroach; trespass: Do not impinge on my privacy.

transitive verb 

To encroach upon: “One of a democratic government's continuing challenges is finding a way to protect . . . secrets without impinging the liberties that democracy exists to protect” (Christian Science Monitor)

derivatives

im·pingément
noun
im·pinǵer
noun