impĕtrātĭo (inp-), ōnis, f. [impetro],
an obtaining by request , accomplishment , Cod. Just. 2, 58, 2; Cod. Th. 11, 22, 4.— Plur. : istas impetrationes nostras nihil valere, Cic. Att. 11, 22, 1.
impetrātiō (inp-) ōnis, f impetro, an obtaining by request ; hence, an entreaty : nostrae. ...
An Elementary Latin Dictionary