Tundra

google

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late 16th century: from Lappish.

wiktionary

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Borrowed from Russian ту́ндра(túndra), from Kildin Sami тӯннтрэ(tūnntre), the accusative/genitive form of тӯнтар(tūntar).

etymonline

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tundra (n.)

an Arctic steppe, 1841, from Russian tundra, from Lappish (Finno-Ugric) tundar, said to mean "elevated wasteland, high-topped hill," or "a marshy plain."