Rhyme Flower (Jiyun) notes the pronunciation as ding qie, same as "ning". Categorized Rhymes (Leipian) explains it as to inform. ○ According to Categorized Rhymes (Leipian), the character's form derives from "white", with a different pronunciation from characters in the "Say" (yue) radical, but the same meaning. "Jade Characters" (Yupian) and "Vast Rhymes" (Guangyun) have characters derived from "say" (yue). The pronunciation is nang ding qie, and "Jade Characters" (Yupian) explains it as to inform.