一切經音義 91.128

91.128

眷砥途（下音止磨石也平也顧平道而如磨石而嘆息古今正字從石氐聲也氐音丁禮反亦作底也）。

眷砥途 [looking back at the smooth road] (The last character is pronounced like 止 [zhǐ]; a whetstone; smooth. Looking back at the smooth road as level as a whetstone and sighing. The Gujin zhengzi says: 'It derives from 石 [stone] with 氐 as phonetic.' 氐 is pronounced with the fanqie 丁禮 [dǐ]; it is also written as 底).