chassis
definition
the base frame of a vehicle or apparatus that supports its structure and houses its components
example
The mechanic inspected the chassis to ensure it was sturdy enough to support the vehicle's performance.
synonyms
framestructurebase
word origin — The word 'chassis' comes from the French word 'châssis', which means 'frame' or 'case', and has its roots in Latin 'capitia', meaning 'frame' or 'case'.