Definition of paxwax in English:

paxwax

(also paswak)

noun

English Regional
  • The thick elastic ligament supporting the back of the skull, especially in a domestic quadruped; the nuchal ligament.

Origin

Middle English; earliest use found in Glossary of W. de Bibbesworth. From fax + wax.

Pronunciation

paxwax

/ˈpakswaks/