Where does “シスター” come from?

シスター (Japanese) comes from English sister, from Middle English suster, from Old English sweostor, from Proto-West Germanic *swester — sister.

シスター (Japanese): sister, sis (older or younger)

Definitions

  1. sister, sis (older or younger)

Ancestry of “シスター”, step by step

StepLanguageWordMeaning
1EnglishsisterA daughter of the same parents as another person;...
2Middle EnglishsusterA sister or step-sister; a female sibling
3Old Englishsweostorsister
4Proto-West Germanic*swestersister
Every word from Proto-West Germanic *swesterEvery word from Old English sweostorEvery word from Middle English suster
シスター — Etymology, Origin & Word History | Etymology Explorer