base-year
Meaning
A specific year used as a standard of comparison for economic or statistical data in subsequent years.
Structure
Usage
The consumer price index is calculated with 2020 as the base-year.
All growth figures are expressed as a percentage change from the base-year.
Selecting an appropriate base-year is crucial for meaningful long-term economic analysis.
Etymology
The term "base-year" is a modern compound noun formed within the specialized language of economics and statistics. The first element, "base," draws on its Latin-derived meaning of a foundation or support, conceptually representing the fixed point of reference. The second element, "year," from a deep Germanic root, specifies the temporal unit. The compound's logic is transparent: it designates the foundational year against which changes in indices, such as prices or production, are measured, transforming the literal idea of a "supporting year" into a standard technical benchmark.
Analysis
- base: From Latin basis (foundation, pedestal), via Old French base. In this compound, it functions as an attributive noun meaning "serving as a foundation or starting point." - year: From Old English gēar (year), from Proto-Germanic jērą. It functions as the head noun specifying the period of time.