The words – NO, NOT – come from the Latin adverb – NON.
This adverb is used in a multitude of English words such as:
NONBELIEVER, NONCHALANT, NONCOM, NONCONFORMIST,
NONESSENTIAL, NONGRATA, NONNEGOTIABLE, NONPAREIL,
NONPARTISAN, NONPLUS, NONPRODUCTIVE, NONSMOKER.
NONCHALANT – comes through the French but ultimately from the Latin word – CALERE – which means – TO HEAT UP, TO BE WARM and the adverb – NON. So if you are not heated up about something … you are unconcerned, indifferent, without zeal.
The Latin word – NEGOTIUM – means – BUSINESS, COMMERCE, WORK. NONNEGOTIABLE means DIFFICULT or IMPOSSIBLE TO SETTLE BY ARBITRATION or MUTUAL CONCESSION. The word indicates that something is not going to work.
There are over a hundred words in the dictionary starting with – NON.