So called from Ionia, where it took its rise. The capitals are decorated with volutes, and the cornice with dentils. The shaft is fluted; the entablature either plain or embellished.
“The people of Ionia formed their order of architecture on the model of a young woman dressed in her hair, and of an easy, elegant shape; whereas the Doric had been formed on the model of a robust, strong man.” —Vitruvius.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894