THE EVIDENCE REGARDING THE PHONETIC STRUCTURE OF PRE-EIGHTH CENTURY TURKISH
The raw material which is available to help us to reconstruct the phonetic structure of pre-eighth century Turkish falls into four classes:—
(1) Early Turkish texts. (2) Turkish names, words and phrases in foreign authorities, mainly Chinese and
Byzantine. (3) Turkish loan words in foreign languages, in particular Mongolian and Magyar. (4) Modern Turkish languages.