Meaning

adjective made smooth and bright by or as if by rubbing; reflecting a sheen or glow

adjective brilliant

adjective reflecting light

originEtymology tree English lustre Proto-Indo-European *h₃ed- Proto-Indo-European *-os Proto-Indo-European *h₃édosder.? Proto-Italic *-ōtsos or *-otsos Latin -ōsus Old French -usbor. Middle English -ous English -ous English lustrous From lustre + -ous.

Etymology from Wiktionary, CC BY-SA 3.0