'in-store' originates from the English words 'in' and 'store', where 'in' meant 'inside' and 'store' referred to a place where goods are sold.

'in-store' evolved from the combination of 'in' and 'store' to describe activities or items available within a retail environment.

Initially, it meant 'inside a store', and over time it evolved to specifically refer to activities or promotions happening within a retail store.