Where does “lustratura” come from?

lustratura (Italian) comes from Italian lustrare, from Latin lūstrō, from Latin lūstrum, from Old Latin loustrom, from Proto-Indo-European lewkstrom, from Proto-Indo-European lewk- — bright; to shine; to see.

lustratura (Italian): polishing, shining

Definitions

polishing, shining

Ancestry of “lustratura”, step by step

Step	Language	Word	Meaning
1	Italian	lustrare	to polish, shine
2	Latin	lūstrō	to purify by means of a propitiatory sacrifice
3	Latin	lūstrum	bog, morass, place where boars and swine wallow
4	Old Latin	loustrom	—
5	Proto-Indo-European	lewkstrom	—
6	Proto-Indo-European	lewk-	bright; to shine; to see

Every word from Proto-Indo-European lewk- →Every word from Proto-Indo-European lewkstrom →Every word from Old Latin loustrom →