You searched for: “glacierization
The covering of a land area by glacier ice.

This term was coined by G. Taylor in the Antarctic and introduced by Wright and Priestly (1922) to distinguish the act of glacial inundation from its geologic consequences (glaciation).

It is growing in use in Great Britain but it still is considered unnecessary by some American geologists, who use the term "glacier covering".

—Wright, Sir C. E., and Priestley, Sir R. E., Glaciology, British (Terra Nova) Antarctic Expedition, 1910–1913; Harrison and Sons Ltd, London; 1922.