Armeno-Phrygian languages

The name Armeno-Phrygian is used for a hypothetical language branch, which would include the languages spoken by the Phrygians and the Armenians, and would be a branch of the Indo-European language family, or a sub-branch of either the proposed "Graeco-Armeno-Aryan" or "Armeno-Aryan" branches. According to this hypothesis, Proto-Armenian was a language descendant from a common ancestor with Phrygian and was closely related to it. Proto-Armenian differentiated from Phrygian by language evolution over time but also by the Hurro-Urartian language substrate influence. Classification is difficult because little is known of Phrygian, but Proto-Armenian arguably forms a subgroup with Greek and Indo-Iranian.
There are two conflicting accounts of the origin and presence of the Armenian language in the lands that were Ancient Armenia:
According to some scholars, there is evidence of language borrowings (Armenisms) from the Proto-Armenian language into Hittite and Urartian.
Criticism.
A number of linguists have rejected a close relationship between Armenian and Phrygian, despite saying that the two languages do share some features. Phrygian is now classified as a centum language more closely related to Greek than Armenian, whereas Armenian is mostly satem.
Recent research suggests that there is lack of archaeological and genetic evidence for a group from the Balkans entering eastern Asia Minor or the Armenian Highlands during or after the Bronze Age Collapse (as was suggested by Diakonoff).