English

greenboard

From green + board.

A compound of green + board

Proto-Indo-European *gʰreh₁- ‘to grow’

…

Proto-Germanic *grōniz

Proto-West Germanic *grōnī

Old English grēne

Middle English grene

English green

Proto-Germanic *burdą ‘board’

Proto-West Germanic *bord ‘board’

Old English bord ‘board’

Middle English boord

English board

Today it means

noun A chalkboard that is green.

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

Etymograph / greenboard