Where does “最新” come from?

最新 (Japanese) comes from Japanese 新, from Middle Chinese 新.

最新 (Japanese): the latest; the newest

Definitions

  1. the latest; the newest

Ancestry of “最新”, step by step

最新 traces back through two separate lines of ancestry.

via Japanese 新

StepLanguageWordMeaning
1Japanese新a novelty
2Middle Chinese新—

via Japanese 最

StepLanguageWordMeaning
1Japanese最most, greatest
2Proto-Indo-Europeansai-—
Every word from Middle Chinese 新 →Every word from Japanese 新 →