English
impuration
From impure + -ation.
A compound of impure + -ation
Proto-Indo-European *pewH- ‘to cleanse, purify’
Proto-Italic *pūros
Latin pūrus ‘pure’
Latin impūrus ‘impure, defiled, filthy, infamous, vile’
Middle French impur
English impure
Today it means
noun The act of making impure; defilement; obscuration.
Language periods are conventional ranges, not dates for this word.
Etymograph / impuration