ēmendātĭo, ōnis, f. [emendo],
a correction , amendment , emendation , Cic. Fin. 4, 9 (with correctio); Quint. 1, 5, 34; 2, 4, 10; 13; Plin. 8, 51, 78, § 210; Dig. 48, 19, 16, § 2 et saep.
ēmendātiō ōnis, f emendo, a correction, amendment, improvement : philosophiae. ...
An Elementary Latin Dictionary