I.over [美 ˈoʊvər, 英 ˈəʊvə]副over often appears as the second element of certain verb structures in English (blow over, knock over, pore over, etc). For translations, see the relevant verb entry (blow, knock, pore, etc).
Generally, businesses in a trade-center town, except for those in competition with the mall, will benefit from the mall's presence as shoppers spill over.