Crassus | Crassĭānus, a, um (noun M) :
* A family name in the gens Licinia. The most distinguished were
* L. Licinius Crassus, a celebrated orator, a contemporary of Cicero, Cic. Brut. 38, 143; id. Off. 1, 30, 108 et saep.; cf. id. Brut. prol. pp. 68-77 Ellendt.
* M. Licinius Crassus, the triumvir.—Hence, , , adj., of or belonging to the triumvir Crassus: exercitūs clades (in the war with the Parthians),Vell. 2, 82, 2; cf.: Crassiana clades,Plin. 6, 16, 18, § 47; Flor. 4, 9, 7.

Male Personal name
Confirmed occurences in the Roman Empire:

• C. Calpurnius Crassus Frugi Licinianus C. Calpurnius Piso Crassus Frugi Licinianus (Masc, senator), ref: PIR C 0259 | PIR ID3436
• C. Calpurnius Crassus Frugi Licinianus C. Calpurnius Piso Crassus Frugi Licinianus (Masc, senator), ref: PIR C 0259 | PIR ID3436
• C. Calpurnius Piso Crassus Frugi Licinianus (Masc, senator), ref: PIR C 0297 | PIR ID3485
• Crassus (Masc, eques), ref: PIR C 1560 | PIR ID5085
• Crassus (Masc), ref: PIR C 1559 | PIR ID5086
• Crassus (Masc), ref: AE 1948, 96 | PIR ID5087
• Galerius Crassus (Masc), ref: PIR G 0027 | PIR ID6517
• Iulius Crassus (Masc, senator), ref: PIR I 0278 | PIR ID7458
• L. Iulius Crassus (Masc), ref: PIR I 0279 | PIR ID7459
• Iunius Crassus (Masc), ref: PIR I 0746 | PIR ID7936
• M. Licinius Crassus (Masc, senator), ref: PIR L 0186 | PIR ID8316
• P. Licinius Crassus (Masc, senator), ref: PIR L 0187 | PIR ID8317
• L. Licinius Crassus Damasippus (Masc), ref: PIR L 0188 | PIR ID8318
• M. Licinius Crassus Frugi (Masc, senator), ref: PIR L 0189 | PIR ID8319
• M. Licinius Crassus Frugi (Masc, senator), ref: PIR L 0190 | PIR ID8320
• M. Licinius Crassus Frugi (Masc, senator), ref: PIR L 0191 | PIR ID8321
• Licinius Crassus Scribonianus (Masc, senator), ref: PIR L 0192 | PIR ID8322
• C. Luccius Crassus (Masc, senator), ref: PIR L 0365 | PIR ID8511
• Mallius Crassus (Masc, eques), ref: PIR M 0111 | PIR ID8754
• L. Octavius Crassus (Masc, senator), ref: PIR O 0029 | PIR ID9812
• M. Otacilius Crassus (Masc, senator), ref: PIR O 0172 | PIR ID9959
• Sulpicius Crassus M. Sulpicius Crassus (Masc, senator), ref: PIR S1 0717 | PIR ID12811
• Sulpicius Crassus M. Sulpicius Crassus (Masc, senator), ref: PIR S1 0717 | PIR ID12811

s. TLL