From Old French vervelle (“falcon's leg fetter”), from Vulgar Latin derivation of Latin vertibulum (“joint”).
varvel (plural varvels)
- (falconry, heraldry) A metal ring bearing the owner's name or coat of arms, attached to a hawk's jesses. Used for identifying birds.
- 1894 — James Parker, A Glossary of Terms Used in Heraldry, s.v. Falcon.
- To the jesses, it is said, are attached the varvels, sometimes written vervels, or rings.