Lewis & Short

prō-mĭco, āre, v. n. and a.

  1. I. Neutr., to gleam forth; transf., to spring forth, start forth (post-class.): promicant molles plumulae, i. e. grow out, App. M. 3, p. 138, 30: rosae, id. ib. 10, p. 253, 9: lacrimae, burst or gush forth, id. ib. 3, p. 133, 40.
  2. II. Act., to throw out, deliver with vehemence: orationem, Naev. ap. Non. 65, 6 (promicare extendere et porro jacere, Non.).