θαλείη

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)

Source

Russian (Dvoretsky)

θαλείη: ἡ ион. = θάλεια I.