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cal·pacor cal·pack also kal·pac (kăl′păk′, kăl-păk′)
A large black cap, usually of sheepskin or felt, worn in Turkey, the Caucasus, Iran, and neighboring regions.
[Ottoman Turkish qalpāq; akin to Tatar and Uyghur qalpaq, perhaps ultimately from an Iranian source such as Middle Persian kulāfak, cap, diminutive of kulāf, hat.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.