Lewis & Short

2. circumgressus, ūs, m. [circumgredior] (perh. only in Amm.).

  1. * I. Abstr., a going about’ rapidi, Amm. 22, 2, 3.
  2. * II. Concr., the compass, circuit of a thing’ amplissimi palus Maeotis, Amm. 22, 8, 30.