1. A derivative is: levirate
派生词为： levirate

2. Husband's brother.
丈夫的兄弟.

3. levirate , from Latin l?vir , husband's brother.
levirate , 源自 拉丁语 l?vir , 丈夫的兄弟.

daiwer的词源：

4. Pokorny d3i^??r 179.
波科尔尼d3i^??r 179.