Lūcĭus | Lūcia, for Lucii puer | Lucipor (noun M) : lux; of the day
* A Roman praenomen, usually represented by L.: Crepusci, qui eo tempore erant nati, ut Lucii prima luce,Varr. L. L. 6, § 5 Müll.; cf.: qui luci natus est Lucius,id. ib. 9, § 60 Müll.; and: Lucius praenomen est ejus, qui primum fuit, qui oriente luce natus est, Paul. ex Fest. p. 119 Müll.—In fem.: , Varr. L. L. 9, § 61 Müll.—Hence
* The slave of a Lucius, Plin. 33, 1, 6, § 26.

Male Personal name
Confirmed occurences in the Roman Empire:

• L. Bellicius Sollers ... Claudius Alpinus Ti. Claudius Augustanus Alpinus Lucius Bellicius Sollers (Masc, senator), ref: PIR B 0103 | PIR ID2949
• Cosconianus P. Lucius Cosconianus a (Masc, senator), ref: PIR C 1522 | PIR ID5032
• T. Flavius Lucius Hierax (Masc), ref: PIR F 0308 | PIR ID6134
• Lucius (Masc, senator), ref: PIR L 0399 | PIR ID8550
• C. Lucius (Masc, senator), ref: PIR L 0403 | PIR ID8551
• Lucius (Masc), ref: PIR L 0400 | PIR ID8552
• Lucius (Masc), ref: PIR L 0401 | PIR ID8553
• Lucius (Masc), ref: PIR L 0402 | PIR ID8554
• Lucius Brutus (Masc, senator), ref: SEG 47, 1867 | PIR ID8555
• Lucius Tiberianus (Masc), ref: PIR T1 0143 | PIR ID8556
• Lucius (Masc), ref: L. Capponi Augustan Egypt, 2005, 181, 186 | PIR ID14927