Where does “decriminalisation” come from?

decriminalisation (English) comes from English criminalisation, from English criminal, from Middle English cryminal, from Anglo-Norman criminal, from Latin crīminālis, from Latin crīmen, from Proto-Italic kreimen, from Proto-Indo-European kréymn̥ — to sift, separate, divide.

Ancestry of “decriminalisation”, step by step

StepLanguageWordMeaning
1EnglishcriminalisationAlternative form of criminalization
2EnglishcriminalAgainst the law; forbidden by law; Guilty of...
3Middle EnglishcryminalRelating to crime or illegal actions; criminal;...
4Anglo-Normancriminalcriminal; illegal; against the law
5Latincrīmināliscriminal
6Latincrīmena judicial decision, verdict, or judgment
7Proto-Italickreimen
8Proto-Indo-Europeankréymn̥
9Proto-Indo-Europeankrey-to sift, separate, divide
Every word from Proto-Indo-European krey-