Origin: Latin suffix -tion
Valuation has 3 different meanings across 1 category:
an appraisal of the value of something
"he set a high valuation on friendship"
An estimation of something's worth.
"The real estate agent provided a valuation of the house based on recent sales in the neighborhood."
In plain English: Valuation is figuring out how much something is worth based on what it can do or sell for.
"The bank lowered its valuation of my home after recent sales in the neighborhood dropped significantly."
The word entered English from Middle French as a noun describing the act of estimating value. It ultimately traces back to the Old French verb meaning "to be worth."