disaster (English)

Where does "disaster" come from?

The word disaster literally translates to an 'ill-starred' event, originating from the Italian 'disastro' which combined the prefix 'dis-' (bad) with 'astro' (star). This term reflects the ancient belief that celestial positions and 'bad stars' were responsible for earthly catastrophes. The roots of the word stretch back from Middle French and Latin into Ancient Greek and ultimately to the Proto-Indo-European word for 'shiner' or 'glower.'

Full etymology tree

disaster (English), 'An unexpected natural or man-made catastrophe of substantial extent causing significant physical damage or destruction, loss of life or sometimes permanent change to the natural environment.'
- borrowed desastre (Middle French), 'disaster'
  - borrowed disastro (Italian), 'disaster'
    - compound dis- (Italian), 'dis-'
      - inherited dis- (Latin), 'asunder, apart, in two'
        inherited *dis- (Proto-Italic)
        inherited *dus- (Proto-Indo-European), 'bad'
        inherited *dwís (Proto-Indo-European), 'twice, doubly'
        derived *dwóh₁ (Proto-Indo-European), 'two'
    - compound astro (Italian), 'celestial body, star'
      - inherited astrum (Latin), 'star, constellation'
        borrowed ἄστρον (ástron) (Ancient Greek), 'A celestial body:'
        derived ἀστήρ (astḗr) (Ancient Greek), 'a celestial body (star, planet, and other lights in the sky such as meteors).'
        inherited *astḗr (Proto-Hellenic), 'star'
        inherited *h₂stḗr (Proto-Indo-European), 'star'
        compound *h₂e(h₁)s- (Proto-Indo-European)
        compound *-tḗr (Proto-Indo-European), 'Derives agent nouns from verb roots, denoting someone or something whose role or purpose it is to perform the root's action.'

Direct ancestors

Updated May 2026

Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris