Lewis & Short

Lēpontĭi, ōrum, m., = Ληπόντιοι,

  1. I. a people of Cisalpine Gaul, on the Ticinus; their territory is the modern Val Leventina, Caes. B. G. 4, 10; Plin. 3, 20, 24, § 134; cf. Mann. Ital. 1, p. 181 sq.
    Hence,
  2. * II. Lēpontĭcus, i, m., a Lepontian, Sil. 4, 235.