(adjective) : Lȳdĭa, ae, f., = Λυδία
* A country in Asia Minor, the capital of which was Sardis, the fabled original land of the Etruscans, Plin. 5, 29, 30, § 110; Varr. R. R. 3, 17, 4; Cic. Fl. 27, 65; Liv. 38, 39, 16 et saep.—Hence
* Lȳdĭus, a, um
* Lydian: regna,of Gyges,Tib. 4, 1, 199: aurifer amnis,i. e. Pactolus,id. 3, 3, 29: mitra,Prop. 3, 15 (4, 16), 30: pensa,which Omphale gave to Hercules,Mart. 9, 66, 11: nurus,i. e. Omphale,Sen. Oet. 371: sil. Plin. 33, 13, 56, § 160: lapis, a touchstone (at first found only on the Tmolus), id. 33, 8, 43, § 126: moduli,id. 7, 56, 57, § 204.
* Lȳdus, a, um, adj., Lydian: Lydus servus,Cic. Fl. 27, 65: puella,i. e. Omphale,Ov. F. 2, 365: Lydae pondera gazae (i. e. aurum Pactoli),Stat. S. 5, 1, 60: nurus,Val. Fl. 4, 369.
* Transf.
* Etruscan: Lydius fluvius,i. e. the Tiber,Verg. A. 2, 781: ripa, the right bank of theTiber, Stat. S. 4, 4, 6: stagna,the Trasimene Lake,Sil. 9, 11.—(Lydii, false read. for ludii; v. ludius).
* Rhaetian (because the Rhaetians were descended from the Etruscans, the descendants of the Lydians): undae,the Lake Benacus,Cat. 31, 13.
* Transf., Etrurian, Etruscan.— As subst.: Lȳdi, ōrum, m.: Lydorum manus,a band of Etruscans,Verg. A. 9, 11.

Feminine Personal name
Confirmed occurences in the Roman Empire:

• Iulia Lydia Laterane (Fem), ref: I. Ephesos 424 | PIR ID7184
• Lydia (Fem), ref: PIR L 0462 | PIR ID8631