Graeco-Phrygian languages

Modern consensus since at least 2009 views Greek as the closest relative of Phrygian, a position that is supported by Brixhe, Harmatta, Neumann, Matzinger, Orel, Ligorio, Lubotsky, Obrador-Cursach, Olsen, Thorsø, Hyllested, Joseph, Van Beek and Van Hes. Furthermore, out of 36 isoglosses collected by Obrador Cursach, Phrygian shared 34 with Greek, with 22 being exclusive between them. The last 50 years of Phrygian scholarship developed a hypothesis that proposes a proto-Graeco-Phrygian stage out of which Greek and Phrygian originated, and if Phrygian was more sufficiently attested, that stage could perhaps be reconstructed.

Evidence

The linguist Claude Brixhe points to the following features Greek and Phrygian are known to have in common and in common with no other language:

• a certain class of masculine nouns in the nominative singular ending in -s
• a certain class of denominal verbs
• the pronoun auto-
• the participial suffix -meno-
• the stem kako-
• and the conjunction ai

Obrador-Cursach (2019) has presented further phonetic, morphological and lexical evidence supporting a close relation between Greek and Phrygian, as seen in the following tables that compare the different isoglosses between Phrygian, Greek, Armenian, Albanian and Indo-Iranian.