ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
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).