LSJ
εως, ἡ, neighbourhood, juxtaposition, in Ion. form ὁμούρησις, Epicur. Ep. I p. 20 U., Nat. 22 G. ; Astrol. (written ὁμορ(ρ)όησις, v.l. -ωσις), of planets, prob. in Antioch.Astr. in Cat.Cod.Astr. 1.159, 8(3).107, 114, Porph. in Ptol. 189.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ἡ, das Angrenzen, wie ὁμούρησις.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)