Etruscan language
Helmut Rix's classification of the Etruscan language in a proposed Tyrsenian language family reflects this ambiguity. He finds Etruscan on one hand genetically related to the Rhaetic language spoken in the Alps north of Etruria, suggesting autochthonous connections, but on the other hand the Lemnian language found on the "Lemnos stele" is closely related to Etruscan, entailing either Etruscan presence in "Tyrsenian" Lemnos, or "Tyrsenian" expansion westward to Etruria. The Etruscan language was of a different family from that of neighbouring Italic and Celtic peoples, who spoke Indo-European languages.