wy·vern also wi·vern 
(wīvərn)
(wīvərn)n.
Heraldry
Heraldry
A two-legged dragon having wings and a barbed tail.
[Alteration of Middle English wyvere, viper, from Old North French wivre, from Latin vīpera; see VIPER.]
wyvern- irrelevant
- irrelevantly
- irreligion
- irreligious
- irreligiously
- irreligiousness
- irremeable
- irremediable
- irremediably
- irremissibility
- irremissible
- irremissibly
- irremovability
- irremovable
- irremovably
- irreparability
- irreparable
- irreparableness
- irreparably
- irrepealable
- irreplaceability
- irreplaceable
- irreplaceableness
- irreplaceably
- irrepressibility