𐌿𐌽𐍄𐌹𐌻𐌰𐌼𐌰𐌻𐍃𐌺𐍃

Etymology
The first element is, from (compare its attested antonym ). The second element is, a reflex of.

The etymology points to a connotation of recklessness induced by overestimation of one's own abilities.

Adjective

 * 1)  reckless, overconfident, rash