from The Century Dictionary and Cyclopedia
- n. In Roman antiquity, a bolt.
- n. [NL.] In obstetrics, a curved fenestrated instrument similar to one of the blades of the obstetrical forceps, used in certain cases to aid delivery. Commonly called lever.
Sorry, no etymologies found.
Fourth, place a balance or beam below, hanging down perpendicularly for some distance with a small weight attached to its end, pendent exactly in line with the centre of gravity; the longer this beam is, the lighter must it be, for it must have the same proportion as the well-known vectis or steel-yard.