c. 1600, "state of being environed" (see environ (v.) + -ment); sense of "the aggregate of the conditions in which a person or thing lives" is by 1827 (used by Carlyle to render German Umgebung); specialized ecology sense first recorded 1956.
he longed for the comfortable environment of his living room
envelopment
envenom
enviable
envious
environ
environment
environmental
environmentalism
environs
envisage
envision