re·trench 1 
(rĭ-trĕnch)
(rĭ-trĕnch)v. re·trenched, re·trench·ing, re·trench·es
v.tr.
1. To reduce (expenses, for example); cut down.
2. Archaic To remove, delete, or omit.
v.intr.
To curtail expenses; economize.
[Middle French retrencher, to remove, suppress, from Old French retrenchier : re-, re- + trenchier, to cut; see TRENCH.]
re·trencher n.