Where does “impoisonment” come from?

impoisonment (English) comes from English impoison, from Middle English impoisounen, from Old French empoisoner.

Ancestry of “impoisonment”, step by step

impoisonment traces back through two separate lines of ancestry.

via English impoison

StepLanguageWordMeaning
1EnglishimpoisonObsolete form of empoison
2Middle Englishimpoisounen—
3Old Frenchempoisoner—

via English ment

StepLanguageWordMeaning
1Englishmentsimple past tense and past participle of meng;...
2Korean멘트—
Every word from Old French empoisoner →Every word from Middle English impoisounen →Every word from English impoison →