Abutment (noun)

A structure that supports an arch, bridge, or dam at one or both of its ends.

Origin:

From the old french abouter ("to abut"), from the latin buttare ("to strike, hit, bea.t")

Examples:

1. The abutments of the bridge were made of strong concrete.
2. The abutment of the dam was designed to withstand the pressure of the water.
3. The abutments of the arch were decorated with intricate carvings.
4. The abutment at one end of the bridge was undermined by the river and had to be repaired.
5. The abutments of the old bridge were replaced with newer, stronger structures.