The interest in early Latin developed mainly outside the field of normative grammar, particularly in authors who belonged to the tradition of scholarly or antiquarian writing. Varro’s encyclopaedic works testify to a unique effort to save uestigia of the cultural and historical past by means of linguistic operations. His approach soon lost its institutional character and was replaced by curiosity for rare minutiae, as in Pliny’s Dubius Sermo. Grammarians like Probus and Caper, whose orientation was philological rather than didactic, considered that the auctoritas of literary models made divergences from the norm or contemporary usage acceptable, and viewed uetustas as the area of experimental variation, both lexical and morphological, with respect to the usage of Republican writers. The inclusion of an immense corpus of literary quotations in comprehensive works (artes grammaticae) facilitated the adoption of an overall perspective that embraced the evolution of the linguistic system at all levels, and kept alive an awareness of the diachronic dimension of the language, which became increasingly profound in scholars like Priscian who read Terence in sixth-century Constantinople.

The chapter sets out to query ancient scholars’ awareness of politeness phenomena as reflected in language and the metalinguistic tools they used to describe them. Particular attention is devoted to the terms charientismos and astimos, as well as to some specific acceptations of reticentia and expressions like grave or durum dictu.

Even if as a general rule ancient grammarians and commentators did not analyse the ordinary spoken language, since they mostly focused on poetry and the more exalted prose genres, it can be argued that all commentators of literary texts pay some considerable attention to ordinary language in interaction, and some attempt is made by them at identifying and labelling what they correctly see as speakers’ rhetorical strategies to reach a pragmatic goal while avoiding conflicts with an interlocutor or giving offence. These writers also make interesting deductions about the social and educational implications of the correct use of politeness etiquette and ritualization.