Tuoba language
Tuoba is an extinct language spoken by the Tuoba people in northern China around the 5th century AD during the Northern Wei dynasty. It has variously been considered to be of Mongolic or Turkic affiliations.
Classification
Alexander Vovin identifies the Tuoba language as a Mongolic language.On the other hand, Juha Janhunen proposed that the Tuoba might have spoken an [Oghur languages|Oghur Turkic languages|Turkic language]. However, Yanhunen's position is ambiguous; he cautiously suggested that the Xianbei and Tabgach languages are Para-Mongolic. According to Peter Boodberg, the Tuoba language was essentially Turkic with Mongolic admixture. Chen Sanping noted that the Tuoba language "had both" Turkic and Mongolic elements.
Liu Xueyao stated that Tuoba may have had their own language, which should not be assumed to be identical with any other known languages.
Andrew Shimunek classifies Tuoba as a "Serbi" language. Shimunek's Serbi branch also consists of the Tuyuhun and Khitan languages.
An-King Lim classifies Tuoba as Turkic language.
Morphology
Some functional suffixes are:- *-A ~ *ʁa ‘verbal noun suffix’
- *-Al ~ *-l ‘deverbal noun suffix’
- **čɪ ~ **či ‘suffix denoting occupations’
- **-mɔr/-mʊr ‘deverbal noun suffix’
- **-n ‘plural suffix’
- **-mɔr/-mʊr ‘deverbal noun suffix’
Lexicon
Selected basic Taghbach words from Shimunek 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 .| Taghbach | Taghbach | English meaning | Original Chinese gloss |
| *agyɪl ~ *agɪl | 屋引 | house | 房 |
| *čʰɪrnɔ | 叱奴 | wolf | 狼 |
| **dɪʁa | 地何 | writing, book, document | 書 |
| **ɦatśir̃ | 阿真 | food | 飲食 |
| *ɦorbǝl | 嗢盆 | warmth | 溫 |
| *ɪrgɪn | 俟懃 | above, superior | 尚 |
| **kʰɪl- | 乞 | to speak | - |
| **kʰɪr- | 契 | to kill someone | 殺人 |
| **kʰɪrʁayčɪn | 契害真 | assassins | 殺人者 |
| *ñaqañ | 若干 | dog | 狗 |
| *pary-al | 拔列 | bridge | 梁 |
| **pʰatala | 破多羅 | rice water | 潘 |
| *qɔw/*qəw | 侯 | pig, boar | 亥 |
| **tʰaʁ | 托 | dirt, soil, earth | 土 |
| *tʰʊʁnar | 土難 | mountain | 山 |
| **tʰʊʁay | 吐奚 | ancient | 古 |
| *uwl/*ʊwl | 宥連 | cloud | 雲 |
| *yirtʊqañ/*yirtʊqan | 壹斗眷 | bright | 明 |
| *žirpəŋ | 是賁 | raised earth, embankment | 封 |
| **žiʁlʊ | 是樓 | high, tall | 高 |