temerarious

The story

1. Latin · learned borrowing fromtemerārius“accidental, casual, rash, reckless”
2. English todaytemerarious

Learned borrowing from Latin temerārius (“accidental, casual, rash, reckless”), from temerē (“by chance, at random, rashly”).

First known use, by meaning

• early 16th c. Characterized by temerity; recklessly daring or bold.