Italo-Celtic
As Italo - Celtic comparative linguistics refers to the inferred common precursor of the Italic and Celtic languages . Italo -Celtic belongs to the western branch of the Indo-European languages and was probably spoken in the first half of the second millennium BC in what is now southern Germany, Bohemia and Austria. Basis of the reconstruction of the Italo - Celtic are several specific morphological similarities between the Celtic and Italic languages , which are hardly explain by borrowing, but organically through a period of common development.
Italo- Celtic common
More specific Celtic- Italic similarities in the lexicon, including some metal labels ( gold, silver, tin, etc. ). This lexical similarities were by neighborhood and loanwords quite explainable, but hardly the above grammatical similarities (see Euler 2009: 24-26).