Where does “不信実” come from?

不信実 (Japanese) comes from Japanese 不, from Middle Chinese 不.

不信実 (Japanese): insincerity; unfaithfulness

Definitions

  1. insincerity; unfaithfulness

Ancestry of “不信実”, step by step

不信実 traces back through two separate lines of ancestry.

via Japanese 不

StepLanguageWordMeaning
1Japanese不un-, non-, in-; bad, poor
2Middle Chinese不—

via Japanese 信実

StepLanguageWordMeaning
1Japanese信実sincerity; honesty; truth; faithfulness
Every word from Middle Chinese 不 →Every word from Japanese 不 →
不信実 — Etymology, Origin & Word History | Etymology Explorer