The word "传宗接代" is formed by the sequential combination of four characters: 传 (to transmit), 宗 (ancestral lineage), 接 (to receive or continue), and 代 (generations). The first pair, 传宗, means "to pass on the lineage", and the second pair, 接代, means "to continue the generations", together creating a compound term that literally denotes the act of ensuring family continuity by transmitting ancestral heritage to succeeding generations.