from
The Collaborative International Dictionary of English v.0.48
Impinge \Im*pinge"\, v. t. [imp. & p. p. {Impinged}; p. pr. &
vb. n. {Impinging}.] [L. impingere; pref. im- in + pangere to
fix, strike; prob. akin to pacisci to agree, contract. See
{Pact}, and cf. {Impact}.]
To fall or dash against; to touch upon; to strike; to hit; to
clash with; -- with on or upon.
[1913 Webster]
The cause of reflection is not the impinging of light
on the solid or impervious parts of bodies. --Sir I.
Newton.
[1913 Webster]
But, in the present order of things, not to be employed
without impinging on God's justice. --Bp.
Warburton.
[1913 Webster]