From Longman Dictionary of Contemporary Englishnerve yourself to do something/for somethingnerve yourself to do something/for somethingBRAVEto force yourself to be brave enough to do something The parachutist nerved himself for the jump. → nerve
Examples from the Corpus
nerve yourself to do something/for something• Finally she nerved herself to go and have a drink.• Ruth clenched her hands inside her cloak, nerving herself to follow him; but it was Fand who didn't move. 