Illustrated Companion to the Latin Dictionary/Menis

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

ME'NIS (from the Greek μήνη). An ornament in the shape of a half-moon, which the Romans used to place at the commencement of their books; hence a menide, from the beginning. Auson. Profess. 25.