LSJ
εως, ἡ, balancing of books, λόγου, λόγων, Ostr. 1135 (iii AD), POxy. 2143.3 (iii AD), PAmh. 2.101.4 (iii AD).
union, support, Olymp. in Mete. 297.18; assistance, Porph. Chr. 31, Simp. in Cael. 703.1.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ἡ, Verbindung, Vereinigung, Hesych.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)