estimation

 
Pronunciation: /ɛstɪˈmeɪʃ(ə)n/

noun

  • 1a rough calculation of the value, number, quantity, or extent of something: estimations of protein concentrations
  • 2 [usually in singular] a judgement of the worth or character of someone or something: the pop star rose in my estimation

Origin:

late Middle English (originally in the sense 'comprehension, intuition', also 'valuing, a valuation'): from Latin aestimatio(n-), from aestimare 'determine, appraise' (see estimate)