Efs
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
Plural form of
ef
., the name of the letter F.
Word Usage
"That by C. Poyard (in the series of "C.efs-d'oeuvre des Littératures Anciennes") combines scholarly precision with an easy, racy, vernacular style in a way that seems impossible to any but a French scholar."