Tang Rhyme (Tang Yun) states pronounced la. Collected Rhymes (Jiyun) states pronounced la. The sound is read as la. Explaining Characters and Writing (Shuowen Jiezi) defines it as the sound of stones. Collected Rhymes (Jiyun) notes that the original character is written as li, or alternatively as li. Additionally, Collected Rhymes (Jiyun) states pronounced li. The sound is read as li. The meaning is the same.