LSJ
τό, Dim. of ἔδαφος 4, Alex.Aphr. in Metaph. 738.17; τῶν κατηγοριῶν τὰ ἐ. Dexipp. in Cat. 5.14, cf. Eust. 1532.63, Tz. H. 4.202, Sch. Pi. O. 5.1.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
τό, dim. zu ἔδαφος, Grundtext, Eust.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)