Institutio Oratoria

It is the task of collocation to link together the words which have been selected, approved and handed over to its custody. For even harsh connexions are better than those which are absolutely valueless. None the less I should allow the orator to select certain words for their euphony, provided always that their force and meaning are the same as those of the alternative words. He may also be permitted to add words, provided they are not superfluous, and to omit them, provided they are not essential to the sense, while he may employ figures to alter case and number, since such variety is attractive in itself,

Again if reason demand one form and usage another, the claims of rhythm will decide our choice between the two, e.g. between vitavisse and vitasse or between deprehendere and deprendere. Further I do not object to the coalescence of syllables or anything that does no injury either to sense or style.