Meaning of NON- in English

NON-

■ prefix expressing negation or absence: ~recognition.

↘not of the kind or class described: ~believer.

Origin

from L. non 'not'.

Usage

The prefixes ~ and un- both have the meaning ‘not’, but tend to be used with a difference of emphasis. See usage at un- 1 .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.