Environs is just horrible: honking and ungainly; imperiously bullying; sarcastic and aggressive.
It means surroundings, that's all, especially the surroundings of a place where people live.
What cloth-eared idiot would want to weigh down such a lovely thing with such a bully of a word?
The good thing is that unless you're a cloth-eared idiot, you won't.
Word Not To Use Today: environs. This word comes from the Old French environner, to surround. Virer means to veer or to turn.