ἄβατον
From LSJ
Περὶ τοῦ ἐπέκεινα τοῦ νοῦ κατὰ μὲν νόησιν πολλὰ λέγεται, θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → On the subject of that which is beyond intellect, many statements are made on the basis of intellection, but it may be immediately cognised only by means of a non-intellection superior to intellection
English (LSJ)
1 τό, abaton, sanctuary, adytum, Theopomp.Hist.313, IG4.952 (Epidaur.), etc.; = bidental, Διὸς καταιβάτου ἄ. ib.2.1659b.
2 τό, abaton, a plant eaten pickled, Gal.6.623.
Greek Monolingual
ἄβατον, το (Α) βαίνω
τμήμα του ναού ή τόπος ιερός, όπου δεν επιτρεπόταν η είσοδος παρά μόνο στους ιερείς.
Wikipedia EN
An abaton is a sacred place, which is not accessible to most people; usually in reference to a monastery.