καταίβασις
From LSJ
τὸ δ' ἐξαίφνης τὸ ἐν ἀναισθήτῳ χρόνῳ διὰ μικρότητα ἐκστάν → suddenly refers to what has departed from its former condition in a time imperceptible because of its smallness
English (LSJ)
εως, ἡ, poet. for κατάβασις, AP11.23 (Antip.).
Greek (Liddell-Scott)
καταίβᾰσις: -εως, ἡ, ποιητ. ἀντὶ τοῦ κατάβασις, Ἀνθ. Π. 11. 23.
