Abbreviate and abridge both mean "to make shorter," so it probably will come as no surprise that both derive from Latin brevis, meaning "short." Abbreviate first appeared in print in English in the 15th century and derives from abbreviātus, the past participle of Late Latin abbreviāre, which in turn can be traced back to brevis. Abridge, which appeared a century earlier, also comes from abbreviāre but took a side trip through the Anglo-French abreger before arriving in Middle English as abreggen. Brevis is also the ancestor of English brief itself, as well as brevity and breviary ("a prayer book" or "a brief summary"), among other words.