Clīo, ūs, f., = Κλειώ.
I The Muse of history : Clio Cliusque sorores, Ov. A. A. 1, 27; Hor. C. 1, 12, 2.—
II A daughter of Oceanus , Verg. G. 4, 341.
Clīō ūs, f , Κλείω, the muse of History, H., O., Iu.—A daughter of Oceanus, V. ...
An Elementary Latin Dictionary
·noun The Muse who presided over history. ...
Webster's Dictionary of the English Language