Lewis & Short

1. actŭārĭus, a, um., adj. [ago] that which is easily moved, swift, agile: navis, a swift sailer, Caes. B. G. 5, 1; Sall. Fragm. ap. Non. 535, 1, and Sisenn. ib. 534, 33; Liv. 25, 30: navigium, Caes. B. C. 1, 27; cf.: “actuariae naves sunt, quae velis simul et remis aguntur,” Isid. Or. 19, 1, 24: also, abs. actŭāria, ae, f., or actŭārium, ĭi, n., the same, Cic. Att. 5, 9; cf. Gell. 10, 25: limes, a road 12 feet wide between fields, Hyg. de Lim. p. 151: canes, hunting-dogs, hounds, acc. to Vel. Long. 2234 P.

2. actŭārĭus, ĭi (written by some actarius, to distinguish it from the preceding, Vel. Long. 2234 P., and so found in Inscr. Grut. 260; ap. Henzen, 6284), sc. scriba, m. [2. actus, II. B. 1.].

  1. I. A short-hand writer, Suet. Caes. 55; Sen. Ep. 33, 9; cf. Lips. Tac. Ann. 5, 4.
  2. II. One who writes out accounts, Petr. 53.