續一切經音義 3.200

3.200

那庾多（中羊主反梵語也或云那由他西域數名也案黃帝筭經有二十三數自萬已去皆有上中下三等數也謂萬億兆京姟秭壤溝㵎正載也下數十十變之中數百百變之上數億億變之案慧苑音義花嚴經阿僧祇品云一百洛叉為俱胝即當此億也俱胝俱胝為阿庾多即當此兆也阿庾多阿庾多為那由他即當此京也餘皆准知配之）。

Nayuta (那庾多: the middle character is yáng + zhǔ [yǔ]; a Sanskrit term, also pronounced nayuta (那由他), a numeral in the Western Regions. According to the Huangdi suanjing, there are twenty-three numerals; from ten thousand (萬) onward, each has three tiers of counting: upper, middle, and lower. Namely: 萬 (myriad), 億, 兆, 京, 姟, 秭, 壤, 溝, 㵎, 正, and 載. In the lower counting system, each varies by tens; in the middle counting system, each varies by hundreds; in the upper counting system, each varies by myriads of myriads (squared). According to Huiyuan's Pronunciation and Meaning on the 'Asaṃkhyeya Chapter' of the Avataṃsaka-sūtra: one hundred lakṣas make one koṭi, which corresponds to Chinese yì (億); a koṭi of koṭis makes an ayuta, which corresponds to Chinese zhào (兆); an ayuta of ayutas makes a nayuta, which corresponds to Chinese jīng (京). The rest can all be determined by analogy).