From: Piotr Gasiorowski
Message: 60398
Date: 2008-09-27
> How do you get Latin tertius out of *trei ?*tri-ti-ó-, with a development of *-ri- into a secondary syllabic *[r.]
> er before a coronal (even in accented syllables). It's parallelled by*tri-st-i- > *terstis > testis 'witness' (but Osc. trístaamentúd) and
> ter.Piotr