verb
shrink
SHRINGK/ʃrɪŋk/
To contract into a smaller extent.
The apple shrinks and wrinkles as it loses moisture.

Etymology
Scrincan described drawing in the limbs, contracting, or withering. These bodily images of becoming smaller developed into the broader meaning of decreasing in size or amount.
In context
the Basin got about half the size so we actually were able to shrink the size of the main infiltration system by about half
More examples
- Hot water can shrink a wool sweater.
- The balloon shrank as the air inside cooled.
- Our savings are shrinking as expenses rise.
Forms
shrink · shrinks · shrank · shrunk · shrunken · shrinking
shrinkage noun — A decrease in size or amount.