λαθοίατο

From LSJ

ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm

Source

French (Bailly abrégé)

3ᵉ pl. opt. ao.2 poét. Moy. de λανθάνω.

Greek Monotonic

λᾰθοίατο: Επικ. αντί -ουντο, Μέσ. ευκτ. αορ. βʹ του λανθάνω.