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Na Ne Ni No Nu Ny
Nec Nek Nem Neo Nep Ner Neu

Neo-

Prefix

1. New. (wiktionary.org)

2. (Organic chemistry) Having a structure, similar to that of neopentane, in which each hydrogen atom of a methyl group has been replaced by an alkyl group. (wiktionary.org)

3. A new or revived form of. (Google Dictionary)

Prefix origin: From Greek neo-, comb. form of neos “new, young, youthful; fresh, strange; lately, just now.”