Pyxis was introduced by Abbé de la Caille, and associated with the giant
'superconstellation' of Argo Navis. In naming the constellation, though, de la Caille
encountered a problem: there is no Latin word for 'compass', because the Romans did
not have them. To solve this, he chose the word pyxis, which literally means
'little box'. The full name of the constellation, not now used, was
Pyxis Nautica, meaning 'The Mariner's Box' or 'The Mariner's Compass'.