disaster (English)

Where does "disaster" come from?

The English noun 'disaster' traveled through Middle French 'desastre'[1] and Italian 'disastro'[1], combining a prefix meaning away or bad with 'astro'[1] meaning 'star'[4]. This Italian term ultimately derives from the Latin 'astrum'[1], which came from the Ancient Greek 'ἄστρον'[1] meaning 'star'[2], tracing back to the Proto-Indo-European root '*h₂stḗr'[1]. That ancient word itself likely originates from a root meaning 'to burn, glow'[5], suggesting an original literal sense related to a glower or shiner[5].

Open questions

• The Proto-Indo-European root for star is analyzed as deriving from a root meaning to burn or glow, though alternative derivations involving dissimilation have also been proposed. [5] [6]

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.'
  • inherited desastre (Middle French), 'disaster'
    • borrowed disastro (Italian), 'disaster'
      • compound dis- (Italian), 'dis-'
      • compound astrum (Latin), 'star, constellation'
        • inherited ἄστρον (ástron) (Ancient Greek), 'A celestial body:'
          • inherited 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)
                • suffix *-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.'

Ancestors

• *h₂eHs- (Proto-Indo-European)
• desastre (Middle French)
• disastro (Italian)
• astrum (Latin)
• ἄστρον (Ancient Greek)
• *h₂stḗr (Proto-Indo-European)

Descendants and derived words

• blizzaster (English)
• disaster area (English)
• disasterclass (English)
• disaster film (English)
• disaster flora (English)
• disasterless (English)
• disasterly (English)
• disaster movie (English)
• disasteroid (English)
• disasterpiece (English)
• disaster tourism (English)
• disaster tourist (English)

Related words

• catastrophe (English)
• tragedy (English)
• chaos (English)
• hazard (English)

Sources

1. disaster (English) - Wiktionary
2. astrum (Latin) - Wiktionary
3. ἄστρον (ástron) (Ancient Greek) - Wiktionary
4. disastro (Italian) - Wiktionary
5. h₂stḗr (Proto-Indo-European) - Wiktionary
6. h₂eHs- (Proto-Indo-European) - Wiktionary
7. ἀστήρ (astḗr) (Ancient Greek) - Wiktionary

Updated September 2026

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