悪あく銭せん

noun

ill-gotten money; bad coin

Refers to money obtained through dishonest or immoral means, or to counterfeit/debased coinage. Often used in the proverb 悪銭身に付かず (ill-gotten gains are soon lost).

• 悪あく銭せん身みに付つかずというから、不ふ正せいなお金かねはすぐに消きえてしまう。