Nŭmĕrĭus (noun M) : abbrev. N.
* A Roman praenomen: qui celeriter erant nati, fere Numerios praenominabant, Varr. ap. Non. 352, 29. Concerning the introduction of this praenomen into the Fabian gens, v. Paul. ex Fest. p. 170 Müll. So, Numerius (abbrev. N.) Fabius Buteo, Liv. 41, 28: N. Fabius Vibulanus,a consul,id. 4, 43: Numerius, Numestius,Cic. Att. 2, 22, 7; 24, 1, 5.—(Fem. Numeria was not in use, Varr. L. L. 9, § 55 Müll.)

Nŭmĕrĭus, a
* The name of a Roman gens. So, Q. Numerius Rufus, a tribune of the people, A. U. C. 697, an enemy of Cicero, Cic. Sest. 33, 72; 38, 82; 43, 94.—Hence
* Nŭmĕrĭānus, a, um, adj., of or belonging to a Numerius, Numerian: raudusculum,Cic. Att. 7, 2, 7.

Male Personal name
Confirmed occurences in the Roman Empire:

• P. Alfius Avitus Numerius Maternus (Masc, senator), ref: PIR A 0531 | PIR ID1203
• P. Alfius Maximus Numerius Avitus (Masc, senator), ref: PIR N 0202 | PIR ID1207
• P. Alfius Maximus Numerius Licinianus (Masc, senator), ref: PIR A 0535 | PIR ID1208
• Aurelius Numerius Eleuther (Masc), ref: PIR A 1563a | PIR ID2621
• Imp. Caesar M. Aurelius Numerius Numerianus Aug. (Masc, senator), ref: PIR A 1564 | PIR ID3280
• T. Numerius (Masc), ref: PIR N 0199 | PIR ID9712
• L. Numerius Albanus (Masc, eques), ref: PIR N 0200 | PIR ID9713
• Numerius Atticus (Masc, senator), ref: PIR N 0201 | PIR ID9714