WordNet (r) 3.0 (2006):

valuate
    v 1: evaluate or estimate the nature, quality, ability, extent,
         or significance of; "I will have the family jewels
         appraised by a professional"; "access all the factors when
         taking a risk" [syn: measure, evaluate, valuate,
         assess, appraise, value]

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "valuate":
   appraise, appreciate, assay, assess, calculate, calibrate, caliper,
   call, check a parameter, class, compute, dial, divide, estimate,
   evaluate, fair-trade, fathom, figure, form an estimate, gauge,
   give an appreciation, graduate, guess, make an estimation, mark,
   measure, mensurate, mete, meter, pace, plumb, price, prize, probe,
   quantify, quantize, quote a price, rank, rate, reckon, set at,
   size, size up, sound, span, step, survey, take a reading,
   triangulate, valorize, value, weigh