The Collaborative International Dictionary of English v.0.48:

Component \Com*po"nent\, n.
   A constituent part; an ingredient.
   [1913 Webster]

   Component of force (Mech.), a force which, acting
      conjointly with one or more forces, produces the effect of
      a single force or resultant; one of a number of forces
      into which a single force may be resolved.
      [1913 Webster] Compony