Latin lucus

← Proto-Germanic *lauhaz (cognate)

← Proto-Indo-European *lewk- (root)

← Proto-Indo-European *lówkos (inherited)

← Proto-Indo-European *lewk- (mention)

← Old Latin loucos (inherited)

← Sanskrit लोक (cognate)

→ Galician Lugo (derived)

→ Latin Lucania (mention)