Etymology Explorer › English

Where does “fallout” come from?

Fallout is a noun derived from the phrasal verb fall out, first used in nuclear physics contexts in mid-20th-century English to describe radioactive particles descending from the atmosphere.

fallout (English): The event of small airborne particles falling to...

Definitions

  1. The event of small airborne particles falling to...

Ancestry of “fallout”, step by step

StepLanguageWordMeaning
1Englishfall"To be moved downwards."; "To move downwards.";...
2Middle Englishfall—
3Old EnglishfeallAlternative form of fiell
4Proto-Germanicfallą—
5Proto-Indo-European(s)pōl-to fall

Words derived from “fallout”

  • nonfallout
  • Fallout
Every word from Proto-Indo-European (s)pōl- →