English
greenism
From green + -ism.
A compound of green + -ism
Proto-Indo-European *gʰreh₁- ‘to grow’
…
Proto-Germanic *grōniz
Proto-West Germanic *grōnī
Old English grēne
Middle English grene
English green
Today it means
noun Environmentalism.
Language periods are conventional ranges, not dates for this word.
Etymograph / greenism