A NEFARIOUS or wicked deed is not according to divine law.
To NEGATE, or to answer in the NEGATIVE, is to say "no".
If a clerk NEGLECTS his work, he fails to "gather it up", and does not do it.
The literal meaning of NEGOTIATE is "not to be at leisure", as in the phrase "to negotiate a piece of business".
NEITHER and NEUTER both mean "not either".
NEPENTHE was an ancient drug which caused one to forget one's sorrows and miseries; it literally means, "no sorrow".
A RENEGADE is a destroyer or traitor; that is, he denies or says "no" to, his previous allegiance.
Also: negligence, negation, abnegation, neutral, never, nonabsorbent, non-Christian, nonconformity, nondevelopment, nonfiction, nonintoxicating, nonpayment, nonskid, nonstop, nontaxable, nontransparent, nontoxic, and hundreds of others.