Ne | Webster's Dictionary of the English Language

ne
nē (old forms nei and ni; v. the foll.), adv. and conj., the primitive Latin negative particle, no...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
ne
nē (1) adv.and conj.I 2 NA-. I I. As adv., no , not ; so in many compounds, as nefas, nemo, etc. ...

An Elementary Latin Dictionary