ἔμ-πτωσις · em-ptōsis — LSJ
falling into, falling
falling into, Corn. ND 22: generally, falling, [καρπῶν] Cat.Cod.Astr. 7.186.
2 falling upon, pressure
falling upon, pressure, D.H. 9.23.
3 incidence, impact
incidence, impact, εἰδώλων Epicur. Sent.Vat. 24, Cic. Att. 2.3.2 (pl.); τοῦ ἡλίου εἰς τὰ νέφη Placit. 3.2.10.
4 propensity
propensity, διανοίας Onos. 1.11.
5 reduction
reduction of dislocation, Gal. 18(1).325.
6 inundation
inundation of the Nile, Heph.Astr. 1.21.