supplicate
v.
early 15c., "beg for, beseech," back-formation from supplication or else from Latin supplicatus, past participle of supplicare "plead humbly, beseech, kneel down." Related: Supplicated; supplicating.
〔蒋〕[sup-下,plic折,-ate动词后缀;’向下折]→折下腰→弯下身→曲膝而求] 退求,哀求
〔李〕[sup- (sub-) =under 下;plic =to bend 弯;-ate v. =to make使……→“to make to bend under somebody使向某人弯下腰”→] v. beg humbly恳求,哀求