ἆρά γε λόγον ἔχει δυοῖν ἀρχαῖν, ὑλικῆς τε καὶ δραστικῆς → does it in fact have the function of two principles, the material and the active?
subs.
Use P. and V. τρύπανον, τό (Plat. and Eur., Cycl.).