Lewis & Short

2. harpăgo ōnis, m. [ἁρπάγη], a hook for drawing things to one’s self, for tearing down any thing, etc., a grappling-hook, grapple, drag (pure Lat. manica, manus ferrea).

  1. I. Lit., Caes. B. G. 7, 81, 1; id. B. C. 1, 57, 2; Liv. 30, 10; Curt. 4, 2; Plin. 7, 56, 57, § 209; Dig. 33, 7, 12, § 21.
  2. * II. Transf., a rapacious person: blandiloquentulus harpago, mendax, cuppes, etc., Plaut. Trin. 2, 1, 13.