The main debate concerning the origin of the Italic languages is the same as that which preoccupied Greek studies for the last half of the 20th century. The Indo-Europeanists for Greek had hypothesized (see Dorian invasion, Proto-Greek language) that Greek originated outside of Greece and was brought in by invaders. Analysis of the lexical items of Mycenaean Greek, an early form of Greek, raised the issue of whether Greek had been formed in Greece from Indo-European elements brought in by migrants or invaders, mixed with elements of indigenous languages. The issue was settled in favor of an origin of Greek in Greece.
A proto-Italic homeland outside of Italy is equally as elusive as the home of the hypothetical Greek-speaking invaders. No early form of Italic is available to match Mycenaean Greek. The Italic languages are first attested in writing from Umbrian and Faliscan inscriptions dating to the 7th century BC. The alphabets used are based on the Old Italic alphabet, which is itself based on the Greek alphabet. The Italic languages themselves show minor influence from the Etruscan and somewhat more from the Ancient Greek languages. The intermediate phases between Italic and Indo-European are still in deficit, with no guarantee that they ever will be found. The question of whether Italic originated outside of Italy or developed by assimilation of Indo-European and other elements inside of Italy, approximately on or within its current range there, remains. Sylvestri says:[4]
"...Common Italic ... is certainly not to be seen as a prehistoric language that can largely be reconstructed, but rather as a set of prehistoric and proto-historic processes of convergence."
Bakkum defines Proto-Italic as a "chronological stage" without an independent development of its own, but extending over late PIE and the initial stages of Proto-Latin and Proto-Sabellic. Meiser's dates of 4000 BC to 1800 BC (well before Mycenaean Greek) he describes as "as good a guess as anyone's."[5]