Cognates. Whether you love ’em or hate ’em, how much Latin are we talking about? When they’re used, do cognates end up comprising most of a book’s Latin? Are we talking half? A quarter? Less? And then what does that mean about the rest of a book? How much of a book’s Latin is being dismissed amongst the cognate concerns? One of the concerns is that cognates weren’t used by Classical authors, the claim being that using infrequent words is a problem, and the conclusion being that cognates are unhelpful for today’s Latin learner. I don’t have this concern or have found evidence to support the claim. Nevertheless, I have been wondering just how much—or little—the concerns constitute, percentage-wise, of a book. I also have been wondering if there were many words Classical authors themselves used that other Classical authors didn’t really use. N.B., I don’t mean hapax, just words that were rarely used by others. Thus, if Classical authors preferred to use rare words, too, that would help illustrate how the current cognate fuss is more about preference than anything else. Let’s see…