borc : box
The Illunse word for box is borc. Borc is an unusual last name. In Old French borc means town or city.
This word is a mixture of the Old English word for box which is box (box, case, especially one made of box-wood), and the Latin word for box which is arca (box, chest; strong-box, coffer).
This is the current word for box.
Here's a link to Box, in J.R.R. Tolkien's words.
borcas : boxes
The Illunse word for boxes (nominative plural) is borcas. Borcas is an unusual last name.
Boxes in Latin is arcae. Boxes in Old English is boxas.