intrench

To incise; cut down or deepen the valley of (a stream).

To make a trench or furrow in; furrow; cut.

To surround as with a trench or ditch.

To fortify with a trench or ditch and parapet; strengthen or protect by walls of defense: as, to intrench a camp or an army.

Hence To fortify or defend by any protecting agency; surround with or guard by anything that affords additional security against attack.

To invade; encroach: with on or upon.

Synonyms Encroach upon, Infringe upon, etc. See trespass, v.i.

To invade; to encroach; to infringe or trespass; to enter on, and take possession of, that which belongs to another; — usually followed by on or upon.

To cut in; to furrow; to make trenches in or upon.