Where does “sister” come from?

sister (Scots) comes from Middle English suster, from Old English sweostor, from Proto-West Germanic *swester — sister.

sister (Scots): sister

Definitions

  1. sister

Ancestry of “sister”, step by step

StepLanguageWordMeaning
1Middle EnglishsusterA sister or step-sister; a female sibling
2Old Englishsweostorsister
3Proto-West Germanic*swestersister

Words derived from “sister”

Every word from Proto-West Germanic *swester →Every word from Old English sweostor →Every word from Middle English suster →
sister — Etymology, Origin & Word History | Etymology Explorer