δυναμοδύναμις
From LSJ
Οὐκ ἔστι σιγᾶν αἰσχρόν, ἀλλ' εἰκῆ λαλεῖν → Silere non est turpe, sed frustra loqui → nicht Schweigen schändet, sondern Schwätzen auf gut Glück
English (LSJ)
εως, ἡ,
A square multiplied by square, fourth power, Hero Metr.1.17; fourth power of unknown quantity (x4), Dioph. Def.1 (pl.), al.: —hence δῠνᾰμο-δῠνᾰμοστόν, τό, the fraction 1/x4, Id.Def.3, al.
German (Pape)
[Seite 673] ἡ, das Quadrat des Quadrats, Diophant.