Lewis & Short

consĭlĭor, ātus, 1, v. dep. [consilium].

  1. I. To take counsel, to consult (rare but class.): consiliandi causā colloqui, Caes. B. C. 1, 19: difficilis ad consiliandum legatio, Cic. Att. 15, 9, 2; Liv. Epit. 125; Hor. C. 3, 3, 17; Tac. H. 2, 53.
  2. * II. Alicui (prop. to take counsel for one, in one’s favor; hence), to impart counsel, to counsel, advise: amice, Hor. A. P. 196.