On the interaction between vowel confusions ( for /i/ and for /u/) and lexical stress in Latin inscriptions from Rome (ca. 119 BCE – ca. 600 CE)

The aim of this article is to better define how changes in the Latin vowel system evolved over time in the stressed vs. the unstressed syllables in the Latin of Rome. To this end, the cases of for /i/ and for /u/ in an epigraphic corpus of 6,599 inscriptions from this city have been analysed by comparing the number of epigraphic errors occurring under and out of stress in five different periods. Our results indicate that, until about the 4th cent. CE, cases of for /i/ and for /u/ occur mostly in the unstressed syllables in our inscriptions, which is consistent with the view that the reorganisation of the vocalic qualities in the Latin vowel system affected the unstressed vowels before it affected the stressed ones. However, the same results also indicate that the number of epigraphic deviations concerning the stressed vowels /i/ and /u/ in our corpus increases from about the 4th–5th cent. CE onwards, and that this fact should be linked to the dephonologisation of contrastive vowel quantity (in the stressed syllables).