Where does “疑問符” come from?

疑問符 (Japanese) comes from Japanese 疑問, from Middle Chinese 疑問.

疑問符 (Japanese): a question mark

Definitions

  1. a question mark

Ancestry of “疑問符”, step by step

疑問符 traces back through two separate lines of ancestry.

via Japanese 疑問

StepLanguageWordMeaning
1Japanese疑問question; problem; doubt
2Middle Chinese疑問—

via Japanese 符

StepLanguageWordMeaning
1Japanese符mark
Every word from Middle Chinese 疑問 →Every word from Japanese 疑問 →