accūrātĭo, ōnis, f. [accuro],
accuracy , exactness , carefulness (very rare): mira in inveniendis componendisque rebus, Cic. Brut. 67, 238: ad omnem accurationem = accuratissime, Veg. 1, 56, 35.
accūrātiō ōnis, f accuro, exactness, carefulness (once): in inveniendis rebus mira. ...
An Elementary Latin Dictionary