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Italian luce
Proto-Indo-European *lewk- (root)
Proto-Indo-European *lewk- (mention)
Italian lux (doublet)
Proto-Italic *louks (inherited)
Latin lūcem (inherited)
Latin lūx (mention)

Italian controluce (prefix)
Italian lucetta (affix)
Italian paraluce (prefix)
Ligurian lûxe (cognate)
Lombard lus (mention)
Sardinian luche (cognate)
Sardinian lughe (cognate)
Venetian łuxe (cognate)