C / Celsus
noun

Celsus

gen. Celsi · gender masculine · decl. 2nd
a Roman cognomen;
a Roman cognomen; esp.,
the greatest of the Roman writers on medicine
A. Cornelius Celsus, the greatest of the Roman writers on medicine.
a friend of Horace
C. Albinovanus, a friend of Horace, Hor. Ep. 1, 3, 15; 1, 8, 1.