English
heathgrass
heath + grass
Proto-Indo-European *kayt- ‘forest, wasteland, pasture’
Proto-Germanic *haiþī ‘heath, waste, untilled land’
Proto-West Germanic *haiþi ‘uncultivated land, wasteland, moor’
Old English hǣþ ‘heath, untilled land, waste’
Middle English heth ‘a heath’
English heath
Proto-Indo-European *gʰreh₁- ‘to grow’
Proto-Germanic *grasą
Proto-West Germanic *gras
Old English græs
Middle English gras ‘a grass’
English grass
Today it means
noun Any of various grasses of the genus Danthonia.
Language periods are conventional ranges, not dates for this word.
Etymograph / heathgrass