spare-parts
UK[ˌspeəˈpɑːts]US[ˌsperˈpɑːrts]
n
Components kept in reserve to replace broken or worn-out parts of a machine or vehicle.
Morpheme Breakdown
spare
parts
spare
extra
parts
components
Etymology
The compound "spare-parts" is a transparent combination of two English words with Germanic and Latinate origins, respectively. "Spare" derives from an Old English root meaning "frugal" or "not used," evolving to signify something held in reserve. "Parts" entered English via French from the Latin pars, meaning a piece or portion. The logic of the compound is direct: these are the "extra pieces" specifically designated for replacement purposes. The term reflects a practical, industrial-age concept where machinery maintenance required a systematic inventory of duplicate components to ensure operational continuity.
Analysis
Structure: spare (extra) + parts (components)
- spare: From Old English spær (sparing, frugal), related to Old Norse sparr (sparing). In this compound, it functions as an adjective meaning "extra or kept in reserve."
- parts: From Old French part, from Latin pars (a part, piece, share). In this compound, it functions as a noun meaning "components or pieces."
Examples
The factory maintains a large warehouse full of spare-parts for its assembly line robots.
Finding the right spare-parts for such an old model of car can be a challenge.
The manual includes a detailed list of all recommended spare-parts.