Etymograph

English

Gleasonian

From Gleason + -ian.

Formed from Gleason + -ian

Proto-Celtic *glastos ‘green, blue’

Old Irish glas ‘green, greenish’

Irish glas ‘green, blue, grey’

Irish Ó Glasáin ‘descendant of Glasán’

English Gleason

Today it means

adj Of or relating to Henry A. Gleason (botanist) (1882–1975), American ecologist, botanist, and taxonomist, known for his endorsement of the individualistic or open community concept of ecological succession, and his opposition to Frederic Clements's concept of the climax state of an ecosystem.

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

Etymograph / Gleasonian