Lewis & Short

mănĭcŭla, ae, f. dim. [manus].

  1. I. Lit., a little hand, Plaut. Rud. 4, 4, 125.
  2. II. Transf. (cf. Engl. handle), the handle of a plough, plough-tail, Varr. L. L. 5, § 136 Müll. (al. manibula).