ὀπισθόδομος
From LSJ
English (LSJ)
ὁ,
A back chamber, inner cell of the old temple of Athena in the Acropolis at Athens, used as the Treasury, IG12.139.17, al., Ar.Pl.1193, D.13.14,24.136, IG22.1388.73, etc. ; Delph. ὀπισσόδομος SIG246 iii 35 (iv B. C.). II as Adj., at the back of a building, αἱ ὀ. στῆλαι Plb.12.11.2.