only
Φιλοκαλοῦμέν τε γὰρ μετ' εὐτελείας καὶ φιλοσοφοῦμεν ἄνευ μαλακίας -> Our love of what is beautiful does not lead to extravagance; our love of the things of the mind does not makes us soft.
Τhucydides, 2.40.1
P. and V. μόνος, V. μοῦνος, οἶος.
an only child: V. μονογενὲς τέκνον.
an only daughter: P. μονογενὴς θυγάτηρ, ἡ (Plato).
not only: P. and V. οὐ μόνον, P. οὐχ ὅτι, μὴ ὅτι.
not only not: P. οὐχ ὅπως (Lys. 185).