E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A rude, unlettered person, a dull blockhead. The ancient Botians loved agricultural and pastoral pursuits, so the Athenians used to say they were dull and thick as their own atmosphere: yet Hesiod, Pindar, Corinna, Plutarch, Pelopidas, and Epaminondas, were all Botians.