Elegantiae terminorum

Necessitudo intimacy/bond is a certain right and bond of friendship. And it is used also for "necessity," and "necessitas" for "necessitudo."
Necessarii close ones are not only relatives and kin, but they are also friends joined by some other society, upon whom necessary duties are conferred.
Nedum much less and these three: "not only," "not only," "not even." Although they say that nedum is never put in the first but in the second clause. The other three are in the first, although sometimes in the second. Also, nedum is in affirmations; that which is more, and of greater moment, is to be placed in the first part. In negations, however, the contrary; that which is of less. But the other three compare: as "I would undertake death for you, much less labor." "So I would shed blood for you, much less money." But they are converted for "not only" and others, with the given examples: as "I would not only shed money for you, but even blood." Also, "I would not only undertake labor for you, but even death." But in negations, the contrary: as "I would not only not undertake death for you, but not even labor." Also, "I would not even shed blood for you, much less money." But it will be said thus: "I would shed blood for you, much less money," or "I would not only shed money for you, but even blood."

Negation is sometimes doubled and tripled.
It is doubled thus: "No one would not hate the barbarians." These two negations induce an affirmation. Negation is tripled in this way, but it is put for two. The first is placed at the beginning of the clause thus: "The unlearned know nothing of Latinity or elegance," or like this: "The unlearned do not know how to speak Latin or elegantly." Where Valla says: "Sometimes three negations do not effect more than two, with the placement of the words themselves making it: as 'you never hindered me nor helped me.' 'You do not know how to live in peace nor in war.'" If you say it thus: "You do not know how to live in peace nor in war," there are three negations, these two, and the same meaning. But notice that if we wish to put only two negations, we should resolve the first of the three into an affirmation: as "you never hindered me nor helped me." And as often as there is strictness in the words, the negation is tripled.
Interpose some of these words, "not," "only," "alone," between two negations of the first clause. And "not" with some word interposed in the later clause, as "it is ill said: 'not only do you not speak elegantly, but not even in Latin.'" But it is said through three thus: "You not only do not speak elegantly, but not even in Latin." Also, "not many stars, but not even the moon keeps its splendor toward the sun." Where, because "not" is present in the strictness, the third negation is not to be put, but in its place at least, or "but certainly," and it ought not be put "but even," as some do. Example: "Not only do you not speak elegantly, but at least you speak in Latin."