From Old Latin aestumāre, whose origin is uncertain. Usually explained as aes (“copper, bronze”) + *temos (“cut”), so “one who cuts copper”, meaning one in the Roman Republic who mints money. De Vaan find this not credible and proposes a connection with the Proto-Indo-European root *h₂eis- (“to seek”) found in aerusco (“to beg”).
- I determine the value of something; value, price, rate, appraise, assess; estimate, reckon, consider, judge.
- I estimate the moral value of something; hold, weigh, value.
- Michiel de Vaan (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden, Boston: Brill Academic Publishers, page 28