A somewhat formal or literary term for a shop or store. In modern Japanese, 商店 or 店舗 are more common.
古い地図には、この通りに多くの商舗が並んでいたと記されている。
Old maps record that many shops lined this street.
Composed of 商 (commerce) and 舗 (shop). The exact historical derivation is uncertain, but it is a Sino-Japanese compound.