The definition of the verb "evaluate" is to determine or set the value or amount of something. Another similar definition is to judge or determine the significance, worth or quality of something. In mathematics, "evaluate" means to determine or calculate the numerical value of something.
"Evaluate" entered the English language in 1831 as a back-formation of the word "evaluation." It comes from the French mathematical terms "évaluer" and "évaluation." The word traces back further to the Old French "value," which means worth or price. "Value" originates from the Latin word "valere," which means to be in good health or to be of worth.