LSJ
ὁ, equating of payments, PMasp. 58 ii 13 (vi AD).
placing side by side, repetition of ideas in a compound (as μυθολογεύειν, λογολεσχεῖν), Eust. 437.25.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ὁ, das Nebeneinanderstellen, Vergleichen ähnlicher Dinge, Sp., bes. Gramm.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)