ob eamque rem, and on account of that thing.
b) atque is used before vowels and consonants; ac never before vowels, and seldom before c, g, qu.
c) et nōn is used for neque when the emphasis of the negative rests upon a special word; as,—
vetus et nōn ignōbilis ōrātor, an old and not ignoble orator.
d) For and nowhere, and never, and none, the Latin regularly said nec ūsquam, nec umquam, nec ūllus, etc.
3. Correlatives. Copulative Conjunctions are frequently used correlatively; as,—
et ... et, both ... and;
neque (nec) ... neque (nec), neither ... nor;
cum ... tum, while ... at the same time;
tum ... tum, not only ... but also.
Less frequently:—
et ... neque; neque ... et.
a. Note that the Latin, with its tendency to emphasize antithetical relations, often uses correlatives, especially et ... et, et ... neque, neque ... et, where the English employs but a single connective.
4. In enumerations—