aa, or a. In medical prescriptions, it signifies an equal quantity of the several ingredients; as, wine and honey, ana, aa or a that is, of wine and honey each two ounces.

as a termination, is annexed to the names of authors to denote a collection of their memorable sayings. Thus, Scaligerana, is a book contained the sayings of Scaliger. It was used by the Romans, as in Collectaneus, collected