portmanteau
Merriam-Webster
A large suitcase.
Wikipedia
A portmanteau (from 16th century French, plural portmanteaux) is a large travelling case made of leather. Originally designed to carry (porte) your coats (manteaux), the portmanteau stands on end, so that the coats are hung vertically, and opens up like a book to make a pair of mini-closets joined by hinges.
Additionally…
Portmanteau has a different definition in today’s world — as a combination word that has two meanings or sounds packed into one word. Blame Lewis Carroll. 
