词根词缀：mento-, ment-, menti-

【来源及含义】Latin: mentum, the chin

【同源单词】augmentation mentoplasty, mental, mental artery, mental foramen, mental nerve, mental protuberance

词根词缀：umbili-, umbil-

【来源及含义】Latin: pertaining to the navel, umbilical cord; a protuberance or swelling; related to umbo, the boss [a convex elevation or knob] of a shield

【同源单词】umbilectomy, umbilical, umbilicate, umbilication, umbilici, umbilicus