The "Wei chih" account of the Wo people is chiefly concerned with a kingdom which it calls Yeh-ma-t'ai, Middle Chinese" i̯a-ma-t'ḁ̂i", which inevitably seems to be a transcription of some early linguistic form allied with the word Yamato. The phonology of this identification raises problems which after generations of study have yet to be settled. The final "-ḁ̂i" of the Middle Chinese form seems to be a transcription of some early form not otherwise recorded for the final "-ö" of Yamato. (1967:17-18)