Eco comes from the Greek word oikos meaning "house, dwelling place, habitation". The German zoologist Ernst Haeckel coined the word Okologie. Logia refers to "study of". In 1873, Haeckel used this word to refer to branch of science dealing with the relationship of living things to their environments. (Source: Online Etymology Dictionary) Harsha replaced "logy" referring to study with "Soch". "Soch" [...]