Libellus Law and Legal Definition

Libellus refers to a small book, a writing or a petition. It is an instrument conveying all or part of land. It also refers to any one of a number of legal petitions or documents, such as bill of complaint. The word libel comes from the Latin libellus, "little book." The legal term derives from the practice in ancient Rome of publishing little books or booklets which were used by one Roman in defaming another.[People for the Ethical Treatment of Animals v. Bobby Berosini, Ltd., 111 Nev. 615, 618 (Nev. 1995)].