οὐρεύω
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)
A to be on garrison duty, SIG527.127 (Crete, iii B. C.); cf. ὀρεύειν, ὠρεύειν.