θεσμοφόριον
From LSJ
τὸ ἐμόν γ' ἐμοὶ λέγεις ὄναρ → you are telling me what I know already, you are telling me my own dream
English (LSJ)
τό,
A temple of Demeter Θεσμοφόρος, Ar.Th.278, 880, IG2.1059.12; at Delos, ib.11(2).159A17 (iii B.C.):— also θεσμο-εῖον Theon Prog.5:
θεσμο-φόριον μέτρον, a form of dactylic metre, Mar.Vict.6.145 K.:
German (Pape)
[Seite 1203] τό, Tempel der Demeter θεσμοφόρος, Ar. Th. 278. 880; auch θεσμοφορεῖον, Sp.