ὀγδοαῖος
From LSJ
καὶ νῦν ἀτεχνῶς ἐθέλω παρέχειν ὅ τι βούλει σοι, πλὴν κωλακρέτου γάλα πίνειν → and now I want to provide you with absolutely anything you want, except paymaster's milk to drink
English (LSJ)
α, ον,
A on the eighth day, Plb.5.52.3, al., Plu.2.288c, Gal.9.869, etc. II of fever, recurring on the eighth day, octavan, Id.7.505.