κειμηλιάρχιον
From LSJ
κρατίστην εἶναι δημοκρατίαν τὴν μήτε πλουσίους ἄγαν μήτε πένητας ἔχουσαν πολίτας → the best democracy is that in which the citizens are neither very rich nor very poor (Thales/Plutarch)
English (LSJ)
τό,
A treasury, Cod.Just.11.48.20.1, al.
German (Pape)
[Seite 1412] τό, Sammlung kostbarer, seltener Dinge, erst Sp.