hypogamy

n.

下嫁婚姻（指女子与社会等级或地位比自己低的男子结成的婚姻）；

Hypogamy
Women’s Age Hypogamy in Korea
Racial-Caste Hypogamy: A Sociological Myth?
HYPERGAMY AND HYPOGAMY IN UTILA, THE BAY ISLANDS OF HONDURAS
Marriage and Hypogamy: The effects of Hyper/Hypogamy on Female Marital Happiness and Divorce
Fecundity and Wife Age and Educational Hypogamy: A Biological Basis for the Gender Wage Gap
A Biological Basis for the Gender Wage Gap: Fecundity and Age and Educational Hypogamy
Hypergamy and Hypogamy in International Marriage: A Case of Recent Marriage between Japanese and Korean (Special Issue in Memory of ...
Education and marriage: the shift from female hypergamy to hypogamy in Belgium, a 20th century cohort analysis
The Dating Game: An Exercise Illustrating the Concepts of Homogamy, Heterogamy, Hyperogamy, and Hypogamy