hērōis

ĭdis, f.
I. a demi-goddess, heroine: heroidum ac dearum personis effictis, Suet. Ner. 21: veteres heroidas aequare, Ov. Am. 2, 4, 33.—In Gr., dat. plur. heroisin, Ov. Tr. 5, 5, 43.—
II. Hērōĭdes, the title of the Epistles of Ovid, acc. to Prisc. p. 908 P.
Lewis & Short
A Latin Dictionary, 1879
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