Lexical Definition

‎λαμπρότης‎ lamprótēs (lam-prot'-ace) brightness G:N-F
from ‎λαμπρός‎

brightness.

Usage: 4 forms in 5 verses
Form Translated As     In Verse(s)
λαμπρότητα brightness Acts.26.13
λαμπρότητί your brightness LXX.Isa.60.3
λαμπρότησι brightness LXX.Ps.110.3
λαμπρότησ brightness LXX.Ps.90.17LXX.Dan.12.3

Abbott-Smith

λαμπρότης, -ητος, ἡ, [in LXX: Ps 109 (110):3* (הָדָר), al.;]
brightness, brilliancy: τ. ἡλίου, Ac 26:13.†

Abbott-Smith References

Book Refs
Psalms 110:3*
Acts 26:13

Liddell-Scott-Jones

λαμπρότης, ητος, ,

brilliancy, splendour, λ. καὶ τάξις τοῦ στρατεύματος [Refs 5th c.BC+]; of a horse, [Refs]; of arms, [Refs 2nd c.BC+]

__2 clearness, distinctness, [Refs 1st c.AD+]
__II metaphorically, brilliancy, splendour, [Refs 5th c.BC+]: plural, distinctions, τιμαὶ καὶ λ. [Refs]; ἔν τινος λαμπρότητι in distinction for a thing, [Refs 1st c.BC+]
__II.2 munificence, [Refs 4th c.BC+]
__II.3 brilliancy of style, [Refs 1st c.AD+]; λαμπρότητες τοῦ λόγου, Latin lumina orationis, [Refs 2nd c.AD+]
__II.4 λ. ψυχῆς magnanimity, [Refs 2nd c.BC+]
__II.5 as a title, σὴ λ. your Serenity, Serene Highness, [Refs 5th c.AD+]