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wyvern

American  
[wahy-vern] / ˈwaɪ vərn /
Or wivern

noun

  1. a two-legged winged dragon having the back part of a serpent with a barbed tail.

wyvern British  
/ ˈwaɪvən /

noun

  1. a heraldic beast having a serpent's tail and a dragon's head and a body with wings and two legs

"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 wyvern

1600–10; alteration (with unexplained -n ) of earlier wyver, Middle English < Anglo-French wivre ( Old French guivre ) < Latin vīpera viper

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.