夤ㄧㄣˊyín緣ㄩㄢˊyuán攀ㄆㄢpān附ㄈㄨˋfù

攀附權貴，拉攏關係。《明史·卷一六八·尹直傳》：「給事中宋琮及御史許斌言直自初為侍郎以至入閣，夤緣攀附，皆取中旨。」

英to cling to the rich and powerful (idiom); to advance one's career by currying favor, social climbing