aggraded

v.build up to a level by depositing sediment

1. The riverbed was aggraded due to the heavy sedimentation after the flood.
   洪水过后，由于大量沉积，河床被淤积了。
2. The landscape aggraded over centuries as layers of sediment built up.
   随着沉积层的积累，地貌在几个世纪间逐渐升高。