1) Bad move 2) Error 3) Failure 4) Make a fielding error 5) To play incorrectly or poorly 1) Err 2) Error 3) Renege 
[v] - play incorrectly, e.g., play a wrong note 2. [v] - play wrong or in an unskillful manner
noun (baseball) a failure of a defensive player to make an out when normal play would have sufficed