(adjective) : Sŏsĭus, i, m.
* Name of a Roman gens.
* C. Sosius, a quoestor under M' Lepidus, Cic. Att. 8, 6, 1.
* Another C. Sosius, consul 722 A.U.C., Cic. Att. 9, 1, 2; Suet. Aug. 17.
* Q. Sosius, a knight of Picenum, Cic. N. D. 3, 30, 74.
* Sosii, famous booksellers in Rome in the time of Horace, Hor. Ep. 1, 20, 2; id. A. P. 345.— Hence, Sŏsĭānus, a, um, , of or belonging to a Sosius, Sosian: Apollo, an image of Apollo brought from Seleucia to Rome by the quoestor C. Sosius, Plin. 13, 5, 11, § 53; 36, 5, 4, § 28.

Male Personal name
Confirmed occurences in the Roman Empire:

• C. Iulius Rufinus Laberius Fabianus Pomponius Triarius Erucius Clarus Sosius Priscus (Masc, senator), ref: PIR I 0525 | PIR ID7747
• Q. Pompeius Falco Sosius Priscus (Masc, senator), ref: PIR P 0603 | PIR ID10680
• Q. Pompeius Senecio Roscius Murena Coelius Sex. Iulius Frontinus Silius Decianus C. Iulius Eurycles Herculaneus L. Vibullius Pius Augustanus Alpinus Bellicius Sollers Iulius Acer Ducenius Proculus Rutilianus Rufinus Silius Valens Valerius Niger Cl. Fuscus Saxa Amyntianus Sosius Priscus (Masc, senator), ref: PIR P 0651 | PIR ID10736
• Q. Pompeius Sosius Falco (Masc, senator), ref: PIR P 0655 | PIR ID10740
• Q. Pompeius Sosius Priscus (Masc, senator), ref: PIR P 0656 | PIR ID10741
• Sosius (Masc, senator), ref: PIR S1 0554 | PIR ID12560
• Q. Sosius Falco (Masc, senator), ref: PIR S1 0557 (= P 0655) | PIR ID12561
• M. Sosius Laelianus Pontius Falco (Masc, senator), ref: PIR P 0798 (= S1 0558) | PIR ID12562
• Sosius Papus (Masc, senator), ref: PIR S1 0559 | PIR ID12563
• Q. Sosius Senecio Q. Sossius Senecio (Masc, senator), ref: PIR S1 0560 | PIR ID12564
• C. Sosius Sossius (Masc, senator), ref: PIR S1 0556 | PIR ID12565