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vig

British  
/ vɪɡ /

noun

  1. slang the interest on a loan that is paid to a moneylender

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of vig

C20: short for vigorish , prob. via Yiddish from Russian vyigrysh profit, winnings