paxwax
noun
pax·wax
ˈpakˌswaks
variants or paxywaxy
ˈpaksēˌwaksē
plural -es
chiefly dialectal
: the nuchal ligament of a quadruped
Word History
Etymology
Middle English paxwax, alteration of faxwax, probably from fax hair of the head (from Old English feax) + wax growth, from waxen to grow