narthēcĭum — Lewis & Short
narthēcĭum, ii, n., = narqh/kion (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.