Peter G. M. Brown
R. A. Kaster
Arruntius Celsus, grammatical authority of uncertain date (before mid-3rd cent.
Ars, Gk. technē, ‘art’, came to have the concrete sense ‘treatise’. Handbooks whose titles incorporated this word were often concerned with grammar or rhetoric. *Ovid's Ars amatoria playfully extended the genre. *Horace's Ars poetica is first so named by *Quintilian (8. 3. 60).