neg-, ne-

(Latin: no, not; to refuse, to nullify; to deny)

negative (adjective), more negative, most negative
Descriptive of being harmful or bad and not wanted: Cars with their exhausts have negative effects or impacts on the environment of many people in several countries.
negatively (adverb), more negatively, most negatively
Conveying a strong dislike or disapproval: The political candidate for the senate was negatively talking about her opponent's bad qualities instead of emphasizing the positive things which she wants to do if elected.
negativeness (s) (noun), negativenesses (pl)
Something that is considered harmful or bad: The negativeness of Jerry's residence is that it is on a very busy street.
negativism (s) (noun), negativisms (pl)
The tendency to do or to say the opposite of what is suggested: Norman had negativisms regarding whether to add more rooms to his house because of the high costs it would take to achieve such extensions.
negativist (s) (noun), negativists (pl)
A person who declares that something is not true even when it is: George was a negativist who would not agree that the weather was going to be stormy despite the predictions presented by TV reporters.
negativity (s) (noun), negativities (pl)
negator, negater (s) (noun); negators, negaters (pl)
A person who has a contrary of non-positive view about everything.
negatory (adjective)
Expressing denial.
negatron (s) (noun), negatrons (pl)
An electron with a negative charge, as contrasted with a positron.
neglect (verb), neglects; neglected; neglecting
1. To fail to give the proper or required care and attention to someone or something.
2. To fail to do something, especially because of carelessness or forgetfulness.
3. Etymology: from Latin neglectus, past participle of neglegere, "to make light of, to disregard"; literally, "not to pick up"; variant of neclegere, from Old Latin nec, "not" + legere, "to pick up, to select".
negligent (adjective)
1. Marked by insufficient care or attention: "Her mother was a negligent housekeeper."
2. Characterized by neglect and undue lack of concern.
negotiate (verb), negotiates; negotiated; negotiating
1. To attempt to come to an agreement on something through discussion and compromise.
2. To manage to get past or to deal with something that constitutes a hazard or obstacle: "We can negotiate these waters with a small boat when the wind is calm."
3. To transfer ownership of a financial instrument; such as, a check or security to someone else in exchange for a payment.
4. Etymology: ultimately from Latin negotium, literally, "lack of leisure"' formed from neg, "not" + otium, "leisure".

The meaning is based on the saying: neg otium est, "There is no leisure."

neuter (adjective)
1. A description of nouns and adjectives in languages; such as, Latin or German, belonging to a separate gender that is neither masculine nor feminine.
2. Referring to undeveloped, non-functioning, or no sexual organs.
neuter (s) (noun), neuters (pl)
1. A gender that refers primarily; but not exclusively, to inanimate objects; that is, neither masculine nor feminine.
2. Etymology: a grammatical gender, "neither masculine nor feminine"; from Latin neuter, literally, "neither one nor the other"; from ne-, "not, no" + uter, "either (of two)"; probably a loan-translation of Greek oudeteros, "neither, neuter". In the 16th century, it had the sense of "taking neither side, being neutral."
neuter (verb), neuters; neutered; neutering
1. Expressing, or designating, that which is of neither sex or gender; such as, a neutered noun, a neutered termination, or a neutered gender.
2. To remove the testicles or ovaries of an animal.

"The verb "to neuter" is from about 1903, from the adjective, originally in reference to pet cats."