續一切經音義 7.84

7.84

欠陷 [Lacking and sinking]: The upper [character] has the fanqie 去劒 (qù + jiàn = qiàn); the Shuowen says, “To be lacking.” The lower [character] has the fanqie 戶𪛏 (hù + xiàn = xiàn), where 𪛏 is 于陷 (yú + xiàn = yàn); the Yupian says, “To enter.” The Qieyun says, “To collapse and submerge; also to fall.” The Shuowen writes it as 臽, a small pit; it derives from 人 inside 臼 (sounded as 舊).