Where does “ただで済む” come from?

ただで済む (Japanese) comes from Japanese で, from Japanese ぜ, from Japanese ぞえ, from Japanese え, from Middle Chinese 衣.

ただで済む (Japanese): to get away without consequences, to get off scot-free

Definitions

  1. to get away without consequences, to get off scot-free

Ancestry of “ただで済む”, step by step

ただで済む traces back through 3 separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japaneseat; with, by, using; indicating the following...
2Japanesesentence-ending particle signifying emphasis,...
3Japaneseぞえ­ sentence-ending particle signifying emphasis, used to lightly press one's point, with affectionate overtones
4JapaneseAlternative form of い
5Middle Chinese

via Old Japanese 済む

StepLanguageWordMeaning
1Old Japanese済むto settle, finish

via Japanese ただ

StepLanguageWordMeaning
1Japaneseただordinary, common, nothing special
Every word from Middle Chinese Every word from Japanese Every word from Japanese ぞえ