Etymograph

English

gneissitic

From gneiss + -itic.

A compound of gneiss + -itic

Old High German gneisto ‘spark’

Middle High German gneist ‘spark’

German Gneis

English gneiss

Today it means

adj Exhibiting characteristics of or containing gneiss.

Language periods are conventional ranges, not dates for this word.

Etymograph / gneissitic