Infringe: actively break the terms of (a law, agreement, etc.): "making an unauthorized copy would infringe copyright" synonyms: contravene, violate, transgress, break, breach

verb (used with object), infringed, infringing.
1.
to commit a breach or infraction of; violate or transgress:
to infringe a copyright; to infringe a rule.
verb (used without object), infringed, infringing.
2.
to encroach or trespass (usually followed by on or upon):
Don't infringe on his privacy.

transitive verb
1 :  to encroach upon in a way that violates law or the rights of another <infringe a patent>

We looked at the 1st Amendment, the foundational principle of our Republic, and saw where it had to be limited--abridged--for the true spirit of that right to shine. Same is true of the 2nd Amendment. Not to infringe but to clarify its use. Infringe does not translate to unrestricted. Quite the opposite. "Well regulated" is not a term to ignore. If ignored is the only way that makes all other arguments of restricted or unrestricted individual ownership possible. A Fable. Or just a sincere delusion. Just blind!

"To keep and bear arms" by any individual, though not a given by the 2nd Amendment, is not infringed upon by gun-control measures presently on the books. A person still gets to keep their guns. Registering your guns and awaiting a background check does not infringe on the right to keep and bear arms by the individual citizen, which is not a right. Reasonable controls do not infringe on the imaginary individual right to keep and bear arms. Such controls merely speak to the spirit of what is just and fair and for the common good. An unrestricted 2nd Amendment violates the Constitution and is a menace to its citizens.