[L. Castalia, Gr. Κασταλία, pr. name.] Proper name of a spring on Mount Parnassus, sacred to the Muses; often used allusively.

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1591.  Spenser, Virgil’s Gnat, 23.

        And the sweete waues of sounding Castaly
With liquid foote doth slide downe easily.

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1600.  Tourneur, Transf. Metamorph., lxxxvii. (1878), 172. Conuert each riuer to pure Castalie.

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1748.  Thomson, Cast. Indol., II. xxi. And brought them to another Castalie.

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1847.  Tennyson, Princess, IV. 275. I led you then to all the Castalies.

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