shoepac
noun
shoe·pac ˈshü-ˌpak 
variants or shoepack
: a waterproof laced boot worn especially over heavy socks in cold weather
Word History
Etymology
by folk etymology from Delaware Jargon (Delaware-based pidgin) seppock shoe, from Delaware (Unami dialect) čípahkɔ shoes
First Known Use
1731, in the meaning defined above