Where does “四字熟語” come from?

四字熟語 (Japanese) comes from Japanese 四, from Middle Chinese 四, from Proto-Sino-Tibetan *pV-lij — four.

四字熟語 (Japanese): a four-kanji set phrase

Definitions

  1. a four-kanji set phrase

Ancestry of “四字熟語”, step by step

四字熟語 traces back through 3 separate lines of ancestry.

via Japanese 四

StepLanguageWordMeaning
1Japanese四four, 4; the fourth
2Middle Chinese四—
3Proto-Sino-Tibetan*pV-lijfour

via Japanese 字

StepLanguageWordMeaning
1Japanese字letter, character; handwriting, penmanship; a...
2Middle Chinese字letter, symbol, character; character

via Japanese 熟語

StepLanguageWordMeaning
1Japanese熟語idiom; an idiom made by combining two or more...

Words derived from “四字熟語”

Every word from Proto-Sino-Tibetan *pV-lij →Every word from Middle Chinese 四 →Every word from Japanese 四 →