I.up [am. angl. əp, brit. angl. ʌp]PRISL.up often appears as the second element of certain verb structures in English (back up, pick up, sit up, etc). For translations, see the relevant verb entry (back, pick, sit, etc).
However, during the robbery, the engineer had overshot the crossing in his nervousness, and had to back the train up, causing some of the robbers to move out of position.
As a herald he enjoyed a very large practice and was able to train up a number of skilled and well-qualified assistants who later became officers of arms.