'ecologically-suited' originates from the combination of 'ecology' and 'suited', where 'ecology' refers to the study of organisms and their environments, and 'suited' means appropriate or fitting.

'Ecologically-suited' combines the concept of 'ecology', derived from the Greek 'oikos' meaning 'house', and 'suited', from the Old French 'suiter', meaning 'to follow'.

Initially, it meant 'fitting for an ecological niche', and this meaning has largely remained the same in modern usage.