ἐκλευκαίνω
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)
ῥόθια δ' ἐκλευκαίνετε
A dash the white spray off the oar, E.IT1387. II Pass., become quite white, Thphr.CP5.9.9, Thd. Da.12.10.