principes

Noun

princeps (plural principes)

1. (Ancient-Rome) The title of the Roman emperor during the principate.
   • Its special characteristics were that the princeps was not governed by any law of procedure or confined to a particular place of judgment and, moreover, had complete freedom in the composition of his consilium.1984, Karl Christ, The Romans: An Introduction to Their History and Civilisation, University of California Press, →ISBN, page 126

   Synonyms:

   First Citizen

2. One who, or that which, is foremost, original, etc.
3. The editio princeps, or first edition of a book.