Meaning of NON- in English
a prefix meaning "not," freely used as an English formative, usually with a simple negative force as implying mere negation or absence of something (rather than the opposite or reverse of it, as often expressed by un- 1 ): nonadherence; noninterference; nonpayment; nonprofessional.
[ prefix repr. L adv. non not ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012