Lewis Short
narthēcĭum (noun N) = ναρθήκιον: (lit. a piece of narthex-wood which has been hollowed out for keeping ointments and medicines in;
* Hence any vessel in which these articles are kept),an ointment-box, a medicine-chest,Mart. 14, 78, 1: jam doloris medicamenta illa Epicurea tamquam de narthecio proment,Cic. Fin. 2, 7, 22.
Charlton T. Lewis, Charles Short, A Latin Dictionary