impinge
im.pinge \im-'pinj\ \-m*nt\ vb [L impingere, fr. in- + pangere to fasten, drive in - more]at PACT 1: to strike or dash esp. with a sharp collision 2: to come into close contact 3: ENCROACH, INFRINGE : to cause (as a gas or a flame) to strike - im.pinge.ment n