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Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
Ā̆dria: Ā̆driăcus, Ā̆driānus, Ā̆driātĭcus, etc., v. Hadria, etc.
Ădrĭa, Ădrĭăcus, v. Hadria.