butor, itself from Gallo-roman butitaurus, a portmanteau of Latinbūtiō and taurus. Joseph P. Pickett, ed. (2000). "Bittern". The American Heritage Dictionary of the English Language (4th ed.). Boston: Houghton Mifflin. Archived from the original on 2005-01-16. Retrieved 2006-07-04.
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butor, itself from Gallo-roman butitaurus, a portmanteau of Latinbūtiō and taurus. Joseph P. Pickett, ed. (2000). "Bittern". The American Heritage Dictionary of the English Language (4th ed.). Boston: Houghton Mifflin. Archived from the original on 2005-01-16. Retrieved 2006-07-04.