same-store

The compound adjective "same-store" is a modern business term constructed from two foundational English words. "Same" originates from the Proto-Germanic sama-, carrying the core meaning of "the one, the very," which evolved into the Old English concept of identity and lack of difference. "Store" has a journey from the Latin instaurare ("to set up, renew") through Old French, arriving in English with meanings related to provisioning and, by the 18th century, a place for retail. The term's logic is transparently literal: it modifies the noun "store" with "same" to specify a comparison among identical, or constant, retail locations over time, filtering out the performance effects of new openings or closures to provide a clearer measure of operational health.

Structure: same (identical) + store (retail outlet) - same: From Old English same, meaning "identical, not different." It functions as an adjective modifying the following noun. - store: From Old French estore, meaning "a supply, a stock of goods," and later "a place where goods are kept for sale." It functions as the primary noun in this compound.