Dictionaryencroachgradual intrusion
verb

encroach

in-KROHCH/ɪnˈkrəʊtʃ/

To gradually intrude beyond rightful boundaries.

Our neighbor's bushes slowly encroach on our side of the fence.

Creeping garden vines spread beyond a clearly defined planting bed onto a neighboring paved walkway, progressively narrowing the open walking space.
Etymology

The hook component supplied the original image of catching or seizing something. From “seize wrongfully,” the meaning broadened to gradual trespass on another person's space, rights, or time.

In context

Angus TV2:18
urban sprawl is what happens when development begins to encroach on areas that had been rural we knew we were losing farmland
LOSING GROUND (2019) - Urban Sprawl Documentary (HD)

More examples

  • Work increasingly encroaches on my free time.
  • New development is encroaching on protected wetlands.
  • Over the years, the driveway encroached on public land.

Forms

encroach · encroaches · encroached · encroaching

encroachment noun — Gradual intrusion on another's territory or rights.

Similar words

intrude
Emphasizes unwanted entry or interference, not necessarily gradual advance.
trespass
Emphasizes entering another's property without permission, even briefly.
infringe
Emphasizes violating rights or rules rather than advancing gradually.