from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A soft boot made of reindeer skin or sealskin and worn by Eskimos.
- n. A slipper with a soft sole resembling this boot.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A soft knee-high boot of sealskin or reindeer skin, originally worn by Inuit and Yupik.
- n. A laced winter boot resembling a traditional mukluk, with thick rubber sole and cloth upper.
Yupik maklak, bearded seal.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Central Siberian Yupik maklak ("bearded seal"), referring to sealskin used to make boots. (Wiktionary)