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Etymology

chassis

/ˈʃæsi/

noun

Origin

Old French

chassiz — a frame, specifically a window frame

Overview

Meaning Now

  • The base frame of a motor vehicle or other wheeled machine, to which the engine, wheels, and body are attached.
  • The metal or plastic case in which the electrical components of a computer, radio, or other electronic device are housed.

Literal older meaning

frame, framework

Language path

Latin → Old French → Middle French → English

Earliest form

chassis

Earliest period

17th century

Journey

The word originally referred to a window frame or a case. It was later adapted by the French in the early 20th century to denote the skeletal frame of the burgeoning automobile, a usage which English borrowed directly.

Evolution

  1. Latin

    capsa

    “box, case”

  2. Old French

    chassiz

    “frame, window frame”

    Evolved from 'chasse' (case/box).

  3. Middle French

    chassis

    “frame, structure”

  4. Modern English

    chassis

    “vehicle frame or electronic enclosure”

    Adopted via French military/automotive context.

Connections

Word parts

chass-

root

case/frame

-is

suffix

nominalizing suffix

Related across languages

  • French

    châssis

    frame

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External references use DefinedTerm semantics.