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.
2.
to encroach; infringe (usually followed by on or upon ): to impinge on another's rights.
3.
to strike; dash; collide (usually followed by on, upon, or against ): rays of light impinging on the eye.
verb (used with object)
4.
Obsolete. to come into violent contact with.
Origin: 1525–35; < Medieval Latinimpingere to strike against, drive at, equivalent to Latinim-im-1 + -pingere, combining form of pangere to fasten, drive in, fix; see impact