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kwaiken

[kwahy-ken, kahy-]
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noun, plural kwai·ken.
  1. a curved knife formerly used by Japanese women to commit suicide.
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Origin of kwaiken

< Japanese k(w)aiken < Middle Chinese, equivalent to Chinese huái bosom + jiàn sword
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018