The Collaborative International Dictionary of English v.0.48:

Predominate \Pre*dom"i*nate\, v. i. [imp. & p. p.
   Predominated; p. pr. & vb. n. Predominating.] [Pref. pre-
   + dominate: cf. F. pr['e]dominer.]
   To be superior in number, strength, influence, or authority;
   to have controlling power or influence; to prevail; to rule;
   to have the mastery; as, love predominated in her heart.
   [1913 Webster]

         [Certain] rays may predominate over the rest. --Sir. I.
                                                  Newton.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

39 Moby Thesaurus words for "predominating":
   accustomed, average, besetting, common, commonplace, conventional,
   current, customary, dominant, epidemic, everyday, familiar,
   habitual, household, normal, normative, ordinary, pandemic,
   popular, predominant, prescriptive, prevailing, prevalent, rampant,
   regnant, regular, regulation, reigning, rife, routine, ruling,
   running, standard, stereotyped, stock, universal, usual,
   vernacular, wonted