Igloo

google

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mid 19th century: from Inuit iglu ‘house’.

wiktionary

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From Inuktitut ᐃᒡᓗ(iglu, “house, building (of any kind)”), from Proto-Inuit *ǝɣlu, from Proto-Eskimo *ǝŋlu.

etymonline

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igloo (n.)

"dome-shaped Eskimo hut, usually made of blocks of hard snow," 1824, Canadian English, from an Eskimo word for "house, dwelling" (compare Greenlandic igdlo "house"). Of any dome-shaped construction, by 1956.