βραχύνω
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)
A abridge, shorten, i. e. to be a sign of a brief attack, Hp. Aph.1.12; use as short, συλλαβήν Pl.Per.4:—Pass., opp. μηκύνομαι, Luc.Hist.Conscr.55; -όμενον φωνῆεν Heph.1.1, D.T.633.