English
knopite
From Knop + -ite.
Formed from Knop + -ite
Proto-Germanic *knuppô
Middle Dutch knoppe
Middle English knop ‘a decorative or ornamental knob’
English Knop
Today it means
noun A variety of perofskite containing cerium in place of calcium.
Language periods are conventional ranges, not dates for this word.
Etymograph / knopite