Glaciate (verb)

To cover (an area of land) with a glacier or ice sheet.

Origin:

The word glaciate is derived from the latin word "glacies" which means "ice" or "frost".

Examples:

1. The area was glaciated during the last ice age.
2. The valley was glaciated and left with a U-shape.
3. The mountain range was glaciated and left with smooth peaks.
4. The island was glaciated and left with a rugged terrain.
5. The region was glaciated and left with a rich deposit of glacial till.