PIVOT (Fr. pivot; probably connected with Ital. pivolo, peg,

See also:

• PIN (a doublet with " pen " from Lat. pinna, feather, pinnacle, which is said to contain the same root as irirvs, pine tree, and properly to mean a sharp point or end)

pin, diminutive of piva, pipa,

See also:

• PIPE

pipe)  , that on which something turns, specifically a metal pointed pin or short shaft in machinery, such as the end of an axle or spindle . The term occurs frequently in combination with other words, chiefly in technical usage, e.g_ " pivot-gearing," for a system of gearing in machinery which admits of the shifting of the axis of a driving wheel, so that the power may be communicated in various directions .