profligacy

The story

1. Latin · derived fromprōflīgō
2. Latin · derived fromprōflīgātus
3. English todayprofligacy

From proflig(ate) + -acy (with -acy a suffixal construction from -ate + -cy), from Latin prōflīgātus, past participle of Latin prōflīgō, from prō- (“forward”) + flīgō (“to strike, dash”) (whence pro-).

Words from the same roots