Where does “isworen” come from?

isworen (Middle English) comes from Old English sworen, from Proto-West Germanic swaran, from Proto-Germanic swaranaz, from Proto-Germanic swarjaną, from Proto-Indo-European swēr- — heavy.

Ancestry of “isworen”, step by step

isworen traces back through two separate lines of ancestry.

via Old English sworen

StepLanguageWordMeaning
1Old Englishsworen—
2Proto-West Germanicswaran—
3Proto-Germanicswaranaz—
4Proto-Germanicswarjanąto swear
5Proto-Indo-Europeanswēr-heavy

via Old English ġesworen

StepLanguageWordMeaning
1Old Englishġesworen—
2Proto-West Germanicgiswaran—
Every word from Proto-Indo-European swēr- →Every word from Proto-Germanic swarjaną →Every word from Proto-Germanic swaranaz →