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[Medieval Latin infringere, from Latin, to break, crush, from in- in + frangere to break]
: to encroach upon in a way that violates law or the rights of another [the right of the people to keep and bear arms, shall not be infringed "U.S. Constitution amend. II"]
: to violate a holder's rights under (a copyright, patent, trademark, or trade name)
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.