myEtymology.com: Greek etymology of katastrophe

Etymology of the Greek word katastrophe (καταστροφή)

the Greek word katastrophe, καταστροφή (an overturn ('catastrophe'); demolition; figuratively, apostasy)

derived from the Greek word katastrephein, καταστρέφειν (to turn upside down; upset)

using the Greek prefix kata-, κατα-

derived from the Greek word kata, κατά (down)

derived from the Greek word strephein, στρέφειν, στρέϕω, στρέφω