An Etymological Dictionary of Astronomy and Astrophysics

1. General: Derived from another; not original or primitive.
   

2. Math.: For a → function  y = f(x), the → limit of the → ratio of the → increment of the function, Δy, to the increment of the → variable, Δx, as the latter tends to → zero. Derived function; result of → differentiation.
   

3. Chemistry: Substance derived or prepared from some other → substance.

Etymology (EN): From M.E. derivatif, from L.L. derivativus, from derivat(us), p.p. of derivare, → derive

• -ivus.

Etymology (PE): Vâxané, noun from vâxan, present stem of vâxanidan,
→ derive.