On the other hand, Juha Janhunen proposed that the Tuoba might have spoken an Oghur Turkic language.[3] However, Janhunen's position is ambiguous; he cautiously suggested that the Xianbei and Tabgach languages are Para-Mongolic.[5][6] According to Peter Boodberg, the Tuoba language was essentially Turkic with Mongolic admixture.[4] Chen Sanping noted that, based on the new evidence uncovered from the Tuoba onomastic data, the core Tuoba clans now would seem more likely to have spoken a Turkic language.[7][8]
Liu Xueyao stated that Tuoba may have had their own language, which should not be assumed to be identical with any other known languages.[9]
Andrew Shimunek (2017) classifies Tuoba (Taghbach) as a "Serbi" (i.e., para-Mongolic) language. Shimunek's Serbi branch also consists of the Tuyuhun and Khitan languages.[1]
An-King Lim (2016, 2023) classifies Tuoba (Tabghatch) as Turkic language.[10][11]
Selected basic Taghbach words from Shimunek (2017) are listed below. Forms reconstructed using the comparative method are marked with one asterisk (*), while forms reconstructed according to the Chinese fanqie spellings and/or rhymes of the traditional Chinese philological tradition are marked with two asterisks (**) (originally marked as ✩ by Shimunek 2017).[1]
1234Shimunek, Andrew (2017). Languages of Ancient Southern Mongolia and North China: a Historical-Comparative Study of the Serbi or Xianbei Branch of the Serbi-Mongolic Language Family, with an Analysis of Northeastern Frontier Chinese and Old Tibetan Phonology. Wiesbaden: Harrassowitz Verlag. ISBN978-3-447-10855-3. OCLC993110372.
12Juha Janhunen, (1996), Manchuria: An Ethnic History, p. 190
12Holcombe, Charles (2001). The Genesis of East Asia: 221 B.C. - A.D. 907. p.132.
↑Janhunen, Juha (2003). Janhunen, Juha (ed.). The Mongolic Languages. London & New York: Routledge. p.406. Assuming that the Xianbei and Tabghach were, indeed, linguistically Mongolic (Para-Mongolic).