Mūsa (noun F) : Μοῦσα
* A muse, one of the goddesses of poetry, music, and the other liberal arts. The ancients reckoned nine of them, viz.: Clio, the muse of history; Melpomene, of tragedy; Thalia, of comedy; Euterpe, of the flute; Terpsichore, of dancing; Calliope, of epic poetry; Erato, of lyric poetry; Urania, of astronomy; Polyhymnia, of the mimic art, Aus. Idyll. 20; Cic. N. D. 3, 21, 54; Hor. Ep. 2, 2, 92: Musarum delubra,Cic. Arch. 11, 27: hic Musarum parens domusque Pieria, Mela, 2, 3, 2: crassiore Musā,in a plainer, clearer manner, without too much refinement,Quint. 1, 10, 28: sine ullā Musā, without any genius, wit, taste, Varr. ap. Non. 448, 16.
* Transf.
* A song, a poem: musa procax,Hor. C. 2, 1, 37: pedestris,a style of poetry bordering on prose,id. S. 2, 6, 17.
* Plur., sciences, studies: quis est omnium, qui modo cum Musis, id est cum humanitate et cum doctrinā habeat aliquod commercium, qui, etc.,Cic. Tusc. 5, 23, 66: agrestiores,id. Or. 3, 12: mansuetiores,philosophical studies,id. Fam. 1, 9, 23.

Mūsa (noun M) :
* A Roman surname, e. g. Antonius Musa, a physician in ordinary of Augustus, Suet. Aug. 59; Plin. 19, 8, 38, § 128: Q. Pomponius Musa, in Eckhel. D. N. V. t. 5, p. 283.

Personal name
Confirmed occurences in the Roman Empire:

• Aemilia Musa (Fem), ref: PIR A 0423 | PIR ID937
• Antonius Musa Sex. Antonius Musa (Masc), ref: PIR A 0853 | PIR ID1624
• Antonius Musa Sex. Antonius Musa (Masc), ref: PIR A 0853 | PIR ID1624
• L. Attius Musa (Masc), ref: III 37 | PIR ID2290
• Musa (Masc), ref: PIR M 0750 | PIR ID9453
• Musa (Masc), ref: PIR M 0751 | PIR ID9454
• Petronius Musa (Masc), ref: PIR P 0293 | PIR ID10312
• Q. Pomponius Musa (Masc, senator), ref: PIR P 0740 | PIR ID10835