LSJ
μνουν, (< μνᾶ) weighing or worth ten minae, Ar. Pax 1224, 1235; δεκάμνουν, τό, weight of ten minae, IG2². 1013.55; written δεκάμνων in ib. 11.203B 99 (Delos, iii BC).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ουν, zsgzn aus δεκάμνοος.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)