English
ecological
From ecology + -ical.
A compound of ecology + -ical
Proto-Indo-European *weyḱ- ‘to enter in, settle’
Proto-Indo-European *wóyḱos ‘settlement’
Proto-Hellenic *wóikos ‘a settlement’
Ancient Greek οἶκος ‘house’
English ecology
Today it means
adj Relating to ecology, the interrelationships of organisms and their environment.
Language periods are conventional ranges, not dates for this word.
Etymograph / ecological