You are able to bear in mind the prefix non- usually means “not” via the phrase nonpoisonous, for any compound that is certainly nonpoisonous is “not” poisonous. Being an interjection to negate what was claimed ahead of or reveal it as sarcasm, it's attested by 1900, popularized 1989 by "Wayne's https://johnnyyekrw.ja-blog.com/26989695/the-smart-trick-of-baumwolltaschen-that-no-one-is-discussing