Conversation so far:
where do you find dwellings made of ice who makes them and what are they called
An igloo is a type of shelter built of snow, often associated with Inuit, Eskimo peoples, and people of Canada's Central Arctic and Greenland's Thule area.
why is snow used for igloos
Snow is used for igloos because the air pockets trapped in it make it an insulator.

Question: what is the etymology
Self-contained rewrite: what is the etymology of the word igloo