Ask at the forum if you have an Ancient or Modern Greek query!
Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
actārius: ii, m., v. actuarius.
āctārius, c. actuarius : CIL 6, 9106.