πρέπει
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται -> For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
Corpus Hippocraticum, Aphorisms 1.6.2Greek Monolingual
ΝΜΑ
(γ' εν. πρόσ.) βλ. πρέπω.
English (Woodhouse)
πρέπει = (see also: πρέπω) it behoves, it is fit, it is incumbent on, it is meet, it is proper