Authoritative answer
Exact answer
Disaster came through French and Italian disastro, built from a negative prefix and astro, star: literally an ill-starred event.
Scope: Recorded English etymology and sense history; reviewed July 31, 2026.
Important boundary: The etymology records an astrological worldview; it does not endorse astrology as a cause of disasters.
Evidence
Quick answer
A short etymology card for disaster: origin, meaning history, memorable hook, and source-language context.
Source-first
Reviewed Sep 2026
Origin story
From dis- plus astro, ill-starred; bad fortune once looked like a problem in the sky.
Why it sticks
The word remembers when catastrophe had astrology in it.
Shareable cardDisaster: The word remembers when catastrophe had astrology in it.