not for nothing

Etymology
The construction predates the 20th century. Its use as a disjunct is common in the 21st century but was either rare or absent before that.

Phrase

 * 1)  Not for no reason; not without reason; (often) for a good reason.

Translations

 * Finnish: ei turhaan
 * German: nicht umsonst
 * Hungarian: nem véletlenül
 * Polish: nie bez powodu


 * Finnish:
 * Hungarian: nem azért mondom


 * Finnish: ei turhaan