κατὰ τὸ φιλόκαλον πειραθέντα κατανοῆσαι → see by working out the calculation
vĭror: ōris, m. vireo,
I green color, greenness, verdure (post-class. for viriditas): pratorum, App. Flor. p. 348, 18: superest aliquid de virore, Pall. Jun. 12; Vop. Prob. 19.
