verb (used without object), im·pinged, im·ping·ing.
- 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), im·pinged, im·ping·ing.
- Obsolete. to come into violent contact with.
- (intr; usually foll by on or upon) to encroach or infringe; trespassto impinge on someone’s time
- (intr; usually foll by on, against, or upon) to collide (with); strike
1530s, “fasten or fix forcibly,” from Latin impingere “drive into, strike against,” from assimilated form of in- “into, in, on, upon” (see in- (2)) + pangere “to fix, fasten” (see pact). Sense of “encroach, infringe” first recorded 1738. Related: Impinged; impinging.