retrenchment

A cutting down or back; reduction.

A curtailment of expenses.

The act of retrenching, lopping off, or pruning; the act of removing what is superfluous.

The act of curtailing, reducing, or lessening; diminution; particularly, the reduction of outlay or expenses; economy.

Milit.: An interior rampart or defensible line, comprising ditch and parapet, which cuts off a part of a fortress from the rest, and to which a garrison may retreat to prolong a defense, when the enemy has gained partial possession of the place.