An Etymological Dictionary of Astronomy and Astrophysics

1. General: To conduct, draw, obtain from a source or origin; to trace to an origin.
   

2. Chemistry: To produce or obtain (a → substance) from another.
   

3. Math.: Verbal form of → derivation.

Etymology (EN): From O.Fr. dériver, from L. derivare “to draw off (a stream of water), from its source,” from de- “from” + riv(us) “a stream” + -are infinitive suffix.

Etymology (PE): Vâxanidan, from vâ- prefix which indicates “returning to, reference,”
→ de-, + xan “source,” variant xân (Gilaki xoni, Tabari xoni, Laki kyani, Tâleši xâni, xoni,
Mid.Pers. xân, xânig “source, spring,” Av. xā-, xan- “source, fountain, spring,” xayana- “belonging to a spring,” cf. Khotanese khâhâ- “spring, fountain,” Skt. khâ’- “spring, source”)

• -idan infinitive suffix.