The tongue was written in an alphabet derived from Etruscan, quite unsuited to a Celtic language. For that reason, the phonetic interpretation of some fourty inscriptions we have is not sure. We can only state that Lepontic was a P-Celtic tongue, but of a specific group different from both Brittonnic ang Goidelic. It had an extensive declension system, as can be seen from the following sample : Latumarui Sapsutaipe uinom nashom (For Latumaros and Sapsuta, wine of Naxos). This example shows the typical Indo-European system of noun declension with even one conjunction -pe (Latin -que).
Gauls who came to Northern Italy in the early 4th century BC broke the
balance of ethnic groups in the region. Soon nothing is heard about the
Lepontic language, and finally Romans assimilate all nations who used to
live here. And their languages are still a secret for us.