Proper noun
Raetic
An extinct language once spoken in Rhaetia
Synonym: Rhaetian
Since very little is known about the Celtic language once spoken in Grisons, and almost nothing about Raetic, words or placenames thought to come from them are usually simply referred to as "pre-Roman". Source: Internet
Since Rix (1998), it is widely accepted that the Tyrsenian family groups Raetic and Lemnian are related to Etruscan. Source: Internet