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).
Contemporary perspectives however, informed by empirical work over the past two decades, offer a more complex account than a simple separation of function into two-streams.