espousal
/ɪˈspaʊzəl/noun
1
- in sing. an act of adopting or supporting a cause, belief, or way of life（对事业、信仰或生活方式的）拥护; 信奉; 采纳：
his espousal of Western ideas.
他对西方思想的信奉。
2
- archaic a marriage or engagement〈古〉结婚; 订婚。
词源
late Middle English: from Old French espousaille, from Latin sponsalia 'betrothal', neuter plural of sponsalis (adjective), from sponsare 'espouse, betroth' （see ESPOUSE）.