Italic languages
From the point of view of Proto-Indo-European, the Italic languages are fairly conservative. In phonology, the Italic languages are centum languages by merging the palatals with the velars (Latin "centum" has a /k/) but keeping the combined group separate from the labio-velars. In morphology, the Italic languages preserve six cases in the noun and the adjective (nominative, accusative, genitive, dative, ablative, vocative) with traces of a seventh (locative), but the dual of both the noun and the verb has completely disappeared. From the position of both morphological innovations and uniquely shared lexical items, Italic shows the greatest similarities with Celtic and Germanic, with some of the shared lexical correspondences also being found in Baltic and Slavic.