Where does “disjoynen” come from?

disjoynen (Middle English) comes from Old French desjoindre, from Latin disiungere, from Latin iungere, from Latin iungo, from Proto-Italic jungō, from Proto-Indo-European yunégti, from Proto-Indo-European yewg- — to join, to yoke, to tie together.

Ancestry of “disjoynen”, step by step

StepLanguageWordMeaning
1Old Frenchdesjoindreto separate
2Latindisiungeresecond-person singular future passive indicative...
3Latiniungeresecond-person singular future passive indicative...
4LatiniungoI join
5Proto-Italicjungōto yoke; to join
6Proto-Indo-Europeanyunégtito be joining
7Proto-Indo-Europeanyewg-to join, to yoke, to tie together

Words derived from “disjoynen

Every word from Proto-Indo-European yewg-Every word from Proto-Indo-European yunégtiEvery word from Proto-Italic jungō