Where does “oathbound” come from?

oathbound (English) comes from English bound, from Middle English bound, from Middle English band, from Old English bend, from Proto-Germanic bandiz, from Proto-Indo-European bʰendʰ- — to bind; bond.

oathbound (English): Bound by an oath

Definitions

  1. Bound by an oath

Ancestry of “oathbound”, step by step

oathbound traces back through two separate lines of ancestry.

via English bound

StepLanguageWordMeaning
1Englishboundsimple past tense and past participle of bind;...
2Middle EnglishboundAlternative form of band
3Middle EnglishbandThat which obstructs one's free will and free...
4Old Englishbendbond, chain, fetter, band, ribbon, ornament,...
5Proto-Germanicbandizband
6Proto-Indo-Europeanbʰendʰ-to bind; bond

via English oath

StepLanguageWordMeaning
1EnglishoathA solemn pledge or promise, appealing to a deity,...
2Middle Englishooth
3Old Englishāþoath
4Proto-West Germanicaiþoath
5Proto-Germanicaiþazoath
6Proto-Indo-Europeanoyt-
Every word from Proto-Indo-European bʰendʰ-Every word from Proto-Germanic bandizEvery word from Old English bend