English
leuconephelinite
From leuco- + nephelinite.
Formed from leuco- + nephelinite
Proto-Indo-European *lewk- ‘bright’
Proto-Indo-European *lewkós ‘bright’
Proto-Hellenic *leukós ‘white’
Ancient Greek λευκός ‘white’
English leuco-
Today it means
noun A light nephelinite
Language periods are conventional ranges, not dates for this word.
Etymograph / leuconephelinite