extrilidus

ἅλμην πιόντες ἐξαπῆλθον τοῦ βίου → they drank seawater and departed from life

Latin > English (Lewis & Short)

extrilidus: a, um, adj.,
I unterrified, dauntless: hominem conspicimus impavidum et extrilidum, Gell. 19, 1, 6 Hertz. (al. extimidum).