encroach
vi.
5ME encrochen < OFr encrochier, to seize upon, take < en3, in + croc, croche, a hook: see CROSIER6
1 to trespass or intrude (on or upon the rights, property, etc. of another), esp. in a gradual or sneaking way
2 to advance beyond the proper, original, or customary limits; make inroads (on or upon)
—SYN TRESPASS
en[croach4ment
n.