1
general::
encroach on/upon sth
1. to gradually take away someone else's rights, or to take control of someone's time, work, etc
• What the government is proposing encroaches on the rights of individuals.
• I resent it that my job is starting to encroach on my family life., encroach on/upon sth
2. to gradually cover more and more of an area of land
• They have promised that the development will not encroach on public land.
Cambridge-Phrasal Verbs