Where does “さすがに” come from?

さすがに (Japanese) comes from Japanese 然, from Middle Chinese 然.

さすがに (Japanese): still, all the same, after all

Definitions

  1. still, all the same, after all

Ancestry of “さすがに”, step by step

さすがに traces back through two separate lines of ancestry.

via Japanese 然

StepLanguageWordMeaning
1Japanese然indicates a state
2Middle Chinese然—

via Japanese が

StepLanguageWordMeaning
1JapaneseがIndicates the subject of a sentence; conjunction;...
2Finnish-nkaForms nouns, mainly bird names (in dialects) and some toponyms
Every word from Middle Chinese 然 →Every word from Japanese 然 →