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Updated June 9, 2019

Family name origins & meanings

  • Probably a variant spelling of Dutch Cossaert, a nickname for a confidante, sweetheart, or flatterer, from an agent derivative of Middle Dutch cosen ‘to whisper’.
  • Perhaps a variant of French Cossard, which is either a nickname for a lazy person or a derivative of cosse ‘pod’ (see Cosse).

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