词根词缀:frustrat-, frustra-
【来源及含义】Latin: in vain, in error; to deceive, to disappoint
【同源单词】biofraud, defraud, defrauded, defrauder, electoral fraud, fraud
词根词缀:-olent, -ulent
【来源及含义】Latin: a suffix; full of, disposed to
【同源单词】acidulent, benevolent, corpulent, diversivolent, esculent, esculent swallow