I. King of Emathia, who gave to his daughters the names of the nine Muses, Ov. M. 5, 302.—
II. A Macedonian, father of the nine Muses, Cic. N. D. 3, 21, 54; cf. Ov. Tr. 5, 3, 10.— Hence,
A. Pīĕris , ĭdis or ĭdos, f., daughter of Pierus, a Muse, Hor. C. 4, 3, 18; Ov. F. 4, 222.—In plur.: Pīĕrĭdes , um, the Muses, Cic. N. D. 3, 21, 54; Verg. E. 8, 63; Juv. 4, 36.—
B. Pīĕrĭus , a, um, adj., Pierian, Thessalian; sacred to the Muses, poetic: “quercus,” from Mount Pierus, in Thessaly, Prop. 2, 10 (3, 4), 5: “jugum,” Phaedr. 3 prol. 17: “nec vir Pieriā pellice saucius,” Thessalian, Hor. C. 3, 10, 15: “via,” Ov. P. 2, 9, 62: “modi,” Hor. A. P. 405: “chori,” Ov. P. 1, 5, 58: “dies,” dedicated to the Muses, Stat. S. 1, 3, 23: “tuba,” an heroic poem, Mart. 10, 64, 4: “frons,” poet's brow, id. 8, 70, 5: “corona,” laurel, id. 12, 52, 1: “grex,” the Muses and poets, id. 12, 11, 4.—Subst. plur.: Pīĕrĭae , ārum, f., the Muses, Cic. N. D. 3, 21, 54.