νευστήρ
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → But for extreme illnesses, extreme remedies, applied with severe exactitude, are the best (Hippocrates, Aphorism 6)
English (LSJ)
ῆρος, ὁ, (νέω A)
A swimmer, sailor, Hsch. (νευτήρ cod., fort. <ἀρ>νευτήρ).