Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

istāc, adv. ( = istā viā),

  1. I. there, that way (ante-class. and very rare): exi istac per hortum, Plaut. Ep. 5, 1, 53; so id. Pers. 3, 3, 39; Ter. Heaut. 3, 3, 27.
  2. II. Trop. ( = eo modo), in that way, in such wise: nequaquam istuc istac ibit: magna inest certatio, Enn. ap. Cic. N. D. 3, 25 fin. (Trag. v. 304 Vahl.): istac indico, on this side, Plaut. Trin. 2, 2, 101.