εἰκοσαπλάσιος
From LSJ
ὥσπερ σελήνη γ' ἡλίῳ· τὴν μὲν χρόαν ἰδεῖν ὁμοιόν ἔστι θάλπει δ' οὐδαμῶς → like the moon to the sun: its color is similar to the eye, but it does not give off any heat
English (LSJ)
[πλᾰ], α, ον, = sq., Aristarch. Sam.7, Procl.Hyp.3.68.
German (Pape)
[Seite 727] zwanzigfach, Plut. fac. orb. lun. 10.