Source : Webster's Revised Unabridged Dictionary (1913)

Hyper- \Hy"per-\ [Gr. "ype`r over, above; akin to L. super, E.
   over. See {Over}, and cf. {Super-}.]
   1. A prefix signifying over, above; as, hyperphysical,
      hyperthyrion; also, above measure, abnormally great,
      excessive; as, hyper[ae]mia, hyperbola, hypercritical,
      hypersecretion.

   2. (Chem.) A prefix equivalent to super- or per-; as
      hyperoxide, or peroxide. [Obs.] See {Per-}.